diff --git a/apps/email.c b/apps/email.c
index fffb8b9..40fae34 100644
--- a/apps/email.c
+++ b/apps/email.c
@@ -89,7 +89,7 @@ struct datetime {
 
 static char              filename[80];
 static char              userentry[80];
-static char              linebuf[LINEBUFSZ];
+static uint8_t           linebuf[LINEBUFSZ];
 static FILE              *fp;
 static struct emailhdrs  *headers;
 static uint16_t          selection = 1;
@@ -1796,7 +1796,7 @@ char prompt_okay(char *msg) {
  */
 void get_email_body(struct emailhdrs *h, FILE *f, char mode) {
   uint16_t chars;
-  char c, *readp, *writep;
+  uint8_t c, *readp, *writep;
   uint32_t pos = 0;
   const int8_t *b = b64dec - 43;
   uint8_t  mime = 0, mime_enc = ENC_7BIT, mime_binary, mime_hasfile;
diff --git a/apps/hfs65.c b/apps/hfs65.c
index 8b1af7a..ef8b650 100644
--- a/apps/hfs65.c
+++ b/apps/hfs65.c
@@ -42,7 +42,7 @@ void send(unsigned char flags, const char* str, ...)
   }
 
   va_start(args, str);
-  send_size += vsnprintf(send_buffer + send_size, sizeof(send_buffer) - send_size, str, args);
+  send_size += vsnprintf((char*)send_buffer + send_size, sizeof(send_buffer) - send_size, str, args);
   va_end(args);
 
   if (flags & SEND_LAST || sizeof(send_buffer) - send_size < 1024 / 4)
@@ -309,9 +309,9 @@ int main(void)
     {
       read(file, &eth_init, 1);
       close(file);
-      eth_init &= ~'0';
+      eth_init &= 7;
     }
-    printf("- %d", eth_init);
+    printf("- %u", eth_init);
   }
 #endif
 
diff --git a/apps/ifttt.c b/apps/ifttt.c
index 86070ca..5201905 100644
--- a/apps/ifttt.c
+++ b/apps/ifttt.c
@@ -91,7 +91,7 @@ int ifttt_trigger(const char* key, const char* event,
     return -1;
   }
 
-  len = url_download(url, download, sizeof(download));
+  len = url_download(url, (uint8_t*)download, sizeof(download));
 
   if (len < 12)
   {
diff --git a/apps/linenoise.c b/apps/linenoise.c
index 7d6a5ff..f1bda9e 100644
--- a/apps/linenoise.c
+++ b/apps/linenoise.c
@@ -78,15 +78,15 @@ struct linenoiseState {
     int history_index;  /* The history index we are currently editing. */
 };
 
-enum KEY_ACTION{
-	CTRL_A = 1,         /* Ctrl+a */
-	CTRL_B = 2,         /* Ctrl-b */
-	CTRL_C = 3,         /* Ctrl-c */
-	CTRL_D = 4,         /* Ctrl-d */
-	CTRL_E = 5,         /* Ctrl-e */
-	CTRL_F = 6,         /* Ctrl-f */
-	CTRL_N = 14,        /* Ctrl-n */
-	CTRL_P = 16         /* Ctrl-p */
+enum KEY_ACTION {
+    CTRL_A = 1,         /* Ctrl+a */
+    CTRL_B = 2,         /* Ctrl-b */
+    CTRL_C = 3,         /* Ctrl-c */
+    CTRL_D = 4,         /* Ctrl-d */
+    CTRL_E = 5,         /* Ctrl-e */
+    CTRL_F = 6,         /* Ctrl-f */
+    CTRL_N = 14,        /* Ctrl-n */
+    CTRL_P = 16         /* Ctrl-p */
 };
 
 static void refreshLine(struct linenoiseState *l);
@@ -102,14 +102,16 @@ static int getColumns() {
     return cols;
 }
 
-#ifdef __APPLE2__
-#pragma code-name (push, "LC")
-#endif
-
 /* Beep, used for completion when there is nothing to complete or when all
  * the choices were already shown. */
 static void linenoiseBeep(void) {
+#ifdef __APPLE2__
+    unsigned char x = wherex();
+#endif
     putchar('\a');
+#ifdef __APPLE2__
+    gotox(x);
+#endif
 }
 
 /* ============================== Completion ================================ */
@@ -123,6 +125,10 @@ static void freeCompletions(linenoiseCompletions *lc) {
         free(lc->cvec);
 }
 
+#ifdef __APPLE2__
+#pragma code-name (push, "LC")
+#endif
+
 /* This is an helper function for linenoiseEdit() and is called when the
  * user types the <tab> key in order to complete the string currently in the
  * input.
diff --git a/apps/nntp65.c b/apps/nntp65.c
index ebbac81..6cbd4a2 100644
--- a/apps/nntp65.c
+++ b/apps/nntp65.c
@@ -637,11 +637,12 @@ void main(int argc, char *argv[]) {
   }
 
   // Copy IP config from IP65 to W5100
-  w5100_config(eth_init);
+  w5100_init(eth_init);
+  w5100_config();
 
   printf("Ok\nConnecting to %s (%u) - ", cfg_server, nntp_port);
 
-  if (!w5100_connect(parse_dotted_quad(cfg_server), nntp_port)) {
+  if (!w5100_connect_addr(parse_dotted_quad(cfg_server), nntp_port)) {
     printf("Fail\n");
     error_exit();
   }
diff --git a/apps/nntp65.up.c b/apps/nntp65.up.c
index d6067a3..9900d71 100644
--- a/apps/nntp65.up.c
+++ b/apps/nntp65.up.c
@@ -548,7 +548,8 @@ void main(int argc, char *argv[]) {
   printf("Ok\n");
 
   // Copy IP config from IP65 to W5100
-  w5100_config(eth_init);
+  w5100_init(eth_init);
+  w5100_config();
 
   sprintf(filename, "%s/NEWS.OUTBOX", cfg_emaildir);
   dp = opendir(filename);
@@ -632,7 +633,7 @@ sendmessage:
     if (!connected) {
       printf("\nConnecting to %s (%u)  - ", cfg_server, nntp_port);
 
-      if (!w5100_connect(parse_dotted_quad(cfg_server), nntp_port)) {
+      if (!w5100_connect_addr(parse_dotted_quad(cfg_server), nntp_port)) {
         printf("Fail\n");
         error_exit();
       }
diff --git a/apps/pop65.c b/apps/pop65.c
index 58eccd7..6b8977f 100644
--- a/apps/pop65.c
+++ b/apps/pop65.c
@@ -534,17 +534,19 @@ void main(int argc, char *argv[]) {
   // Abort on Ctrl-C to be consistent with Linenoise
   abort_key = 0x83;
 
+  w5100_init(eth_init);
+
   printf("Ok\nObtaining IP address         - ");
   if (dhcp_init()) {
     ip65_error_exit();
   }
 
   // Copy IP config from IP65 to W5100
-  w5100_config(eth_init);
+  w5100_config();
 
   printf("Ok\nConnecting to %s   - ", cfg_server);
 
-  if (!w5100_connect(parse_dotted_quad(cfg_server), pop_port)) {
+  if (!w5100_connect_addr(parse_dotted_quad(cfg_server), pop_port)) {
     printf("Fail\n");
     error_exit();
   }
diff --git a/apps/print65.c b/apps/print65.c
index cd832cd..077fad8 100644
--- a/apps/print65.c
+++ b/apps/print65.c
@@ -280,7 +280,8 @@ void main(int argc, char *argv[]) {
   printf("Ok\n");
 
   // Copy IP config from IP65 to W5100
-  w5100_config(eth_init);
+  w5100_init(eth_init);
+  w5100_config();
 
   fp = fopen(filename, "rb");
   if (!fp) {
@@ -291,7 +292,7 @@ void main(int argc, char *argv[]) {
   if (!connected) {
     printf("\nConnecting to %s:%d - ", cfg_server, jetdirect_port);
 
-    if (!w5100_connect(parse_dotted_quad(cfg_server), jetdirect_port)) {
+    if (!w5100_connect_addr(parse_dotted_quad(cfg_server), jetdirect_port)) {
       printf("Fail\n");
       error_exit();
     }
diff --git a/apps/smtp65.c b/apps/smtp65.c
index 443a2f4..076a1ed 100644
--- a/apps/smtp65.c
+++ b/apps/smtp65.c
@@ -547,7 +547,8 @@ void main(int argc, char *argv[]) {
   printf("Ok\n");
 
   // Copy IP config from IP65 to W5100
-  w5100_config(eth_init);
+  w5100_init(eth_init);
+  w5100_config();
 
   sprintf(filename, "%s/OUTBOX", cfg_emaildir);
   dp = opendir(filename);
@@ -644,7 +645,7 @@ sendmessage:
     if (!connected) {
       printf("\nConnecting to %s   - ", cfg_smtp_server);
 
-      if (!w5100_connect(parse_dotted_quad(cfg_smtp_server), smtp_port)) {
+      if (!w5100_connect_addr(parse_dotted_quad(cfg_smtp_server), smtp_port)) {
         printf("Fail\n");
         error_exit();
       }
diff --git a/apps/tweet65.c b/apps/tweet65.c
index 5e11a5c..d14c1b6 100644
--- a/apps/tweet65.c
+++ b/apps/tweet65.c
@@ -152,9 +152,9 @@ int main(void)
     {
       read(file, &eth_init, 1);
       close(file);
-      eth_init &= ~'0';
+      eth_init &= 7;
     }
-    printf("- %d\n", eth_init);
+    printf("- %u\n", eth_init);
   }
 #endif
 
diff --git a/apps/w5100.c b/apps/w5100.c
index f3349f2..fbb09d2 100644
--- a/apps/w5100.c
+++ b/apps/w5100.c
@@ -65,12 +65,8 @@ static uint16_t addr_mask [2];
 
 static void set_addr(uint16_t addr)
 {
-  // The variables are necessary to have cc65 generate code
-  // suitable to access the W5100 auto-increment registers.
-  uint8_t addr_hi = addr >> 8;
-  uint8_t addr_lo = addr;
-  *w5100_addr_hi = addr_hi;
-  *w5100_addr_lo = addr_lo;
+  *w5100_addr_hi = addr >> 8;
+  *w5100_addr_lo = addr;
 }
 
 static uint8_t get_byte(uint16_t addr)
@@ -91,54 +87,44 @@ static uint16_t get_word(uint16_t addr)
 {
   set_addr(addr);
 
-  {
-    // The variables are necessary to have cc65 generate code
-    // suitable to access the W5100 auto-increment registers.
-    uint8_t data_hi = *w5100_data;
-    uint8_t data_lo = *w5100_data;
-    return data_hi << 8 | data_lo;
-  }
+  return *w5100_data << 8 | *w5100_data;
 }
 
 static void set_word(uint16_t addr, uint16_t data)
 {
   set_addr(addr);
 
-  {
-    // The variables are necessary to have cc65 generate code
-    // suitable to access the W5100 auto-increment registers.
-    uint8_t data_hi = data >> 8;
-    uint8_t data_lo = data;
-    *w5100_data = data_hi;
-    *w5100_data = data_lo;
-  }
+  *w5100_data = data >> 8;
+  *w5100_data = data;
 }
 
 static void set_quad(uint16_t addr, uint32_t data)
 {
   set_addr(addr);
 
-  {
-    // The variables are necessary to have cc65 generate code
-    // suitable to access the W5100 auto-increment registers.
-    uint8_t data_1 = data;
-    uint8_t data_2 = data >> 8;
-    uint8_t data_3 = data >> 16;
-    uint8_t data_4 = data >> 24;
-    *w5100_data = data_1;
-    *w5100_data = data_2;
-    *w5100_data = data_3;
-    *w5100_data = data_4;
-  }
+  *w5100_data = data;
+  *w5100_data = data >> 8;
+  *w5100_data = data >> 16;
+  *w5100_data = data >> 24;
 }
 
-void w5100_config(uint8_t eth_init)
+bool w5100_init(uint8_t eth_init)
 {
   w5100_mode    = (uint8_t*)(eth_init << 4 | 0xC084);
   w5100_addr_hi = w5100_mode + 1;
   w5100_addr_lo = w5100_mode + 2;
   w5100_data    = w5100_mode + 3;
 
+  // PPP Link Control Protocol Request Timer Register defaults to 0x28
+  // on a real W5100. However, AppleWin features a virtual W5100 that
+  // supports DNS offloading. On that virtual W5100, the (otherwise
+  // anyhow unused) register defaults to 0x00 as detection mechanism.
+  // https://github.com/a2retrosystems/uthernet2/wiki/Virtual-W5100-with-DNS
+  return get_byte(0x0028) == 0x00;
+}
+
+void w5100_config(void)
+{
 #ifdef SINGLE_SOCKET
 
   // IP65 is inhibited so disable the W5100 Ping Block Mode.
@@ -193,14 +179,14 @@ void w5100_config(uint8_t eth_init)
   }
 }
 
-bool w5100_connect(uint32_t addr, uint16_t port)
+static bool w5100_connect(uint16_t port)
 {
-  // Socket x Mode Register: TCP
-  set_byte(SOCK_REG(0x00), 0x01);
-
   // Socket x Source Port Register
   set_word(SOCK_REG(0x04), ip65_random_word());
 
+  // Socket x Destination Port Register
+  set_word(SOCK_REG(0x10), port);
+
   // Socket x Command Register: OPEN
   set_byte(SOCK_REG(0x01), 0x01);
 
@@ -213,12 +199,6 @@ bool w5100_connect(uint32_t addr, uint16_t port)
     }
   }
 
-  // Socket x Destination IP Address Register
-  set_quad(SOCK_REG(0x0C), addr);
-
-  // Socket x Destination Port Register
-  set_word(SOCK_REG(0x10), port);
-
   // Socket x Command Register: CONNECT
   set_byte(SOCK_REG(0x01), 0x04);
 
@@ -238,6 +218,34 @@ bool w5100_connect(uint32_t addr, uint16_t port)
   }
 }
 
+bool w5100_connect_addr(uint32_t addr, uint16_t port)
+{
+  // Socket x Mode Register: TCP, Use No Delayed ACK
+  set_byte(SOCK_REG(0x00), 0x21);
+
+  // Socket x Destination IP Address Register
+  set_quad(SOCK_REG(0x0C), addr);
+
+  return w5100_connect(port);
+}
+
+bool w5100_connect_name(const char* name, uint8_t length, uint16_t port)
+{
+  // Socket x Mode Register: TCP, Use No Delayed ACK, Use DNS Offloading
+  set_byte(SOCK_REG(0x00), 0x29);
+
+  // Socket x DNS name length
+  set_byte(SOCK_REG(0x2A), length);
+
+  // Socket x DNS name chars
+  while (length--)
+  {
+    *w5100_data = *name++;
+  }
+
+  return w5100_connect(port);
+}
+
 bool w5100_connected(void)
 {
   // Socket x Status Register: SOCK_ESTABLISHED ?
diff --git a/apps/w5100.h b/apps/w5100.h
index 71466d8..d6bfc82 100644
--- a/apps/w5100.h
+++ b/apps/w5100.h
@@ -46,13 +46,23 @@ void w5100_data_commit(bool do_send, uint16_t size);
 // to be sent to the server.
 extern volatile uint8_t* w5100_data;
 
+// Initialize this module after the IP65 TCP/IP stack has been initialized.
+// Return true if the (virtual) W5100 supports DNS Offloading.
+// https://github.com/a2retrosystems/uthernet2/wiki/Virtual-W5100-with-DNS
+bool w5100_init(uint8_t eth_init);
+
 // Configure W5100 Ethernet controller with additional information from IP65
 // after the IP65 TCP/IP stack has been configured.
-void w5100_config(uint8_t eth_init);
+void w5100_config(void);
 
-// Connect to server with IP address <server_addr> on TCP port <server_port>.
+// Connect to server with IP address <addr> on TCP port <port>.
 // Return true if the connection is established, return false otherwise.
-bool w5100_connect(uint32_t addr, uint16_t port);
+bool w5100_connect_addr(uint32_t addr, uint16_t port);
+
+// Connect to server with name <name>, <length> on TCP port <port> using
+// DNS Offloading.
+// Return true if the connection is established, return false otherwise.
+bool w5100_connect_name(const char* name, uint8_t length, uint16_t port);
 
 // Check if still connected to server.
 // Return true if the connection is established, return false otherwise.
diff --git a/apps/w5100_http.c b/apps/w5100_http.c
index b262c31..3381255 100644
--- a/apps/w5100_http.c
+++ b/apps/w5100_http.c
@@ -39,16 +39,9 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #pragma optimize      (on)
 #pragma static-locals (on)
 
-bool w5100_http_open(uint32_t addr, uint16_t port, const char* selector,
-                     char* buffer, size_t length)
+static bool w5100_http_open(const char* selector, char* buffer, size_t length)
 {
-  printf("Connecting to %s:%d ", dotted_quad(addr), port);
-
-  if (!w5100_connect(addr, port))
-  {
-    printf("- Connect failed\n");
-    return false;
-  }
+  register volatile uint8_t *data = w5100_data;
 
   printf("- Ok\n\nSending request ");
   {
@@ -82,15 +75,11 @@ bool w5100_http_open(uint32_t addr, uint16_t port, const char* selector,
       }
 
       {
-        // One less to allow for faster pre-increment below
-        const char *dataptr = selector + pos - 1;
+        const char *dataptr = selector + pos;
         uint16_t i;
         for (i = 0; i < snd; ++i)
         {
-          // The variable is necessary to have cc65 generate code
-          // suitable to access the W5100 auto-increment register.
-          char data = *++dataptr;
-          *w5100_data = data;
+          *data = *dataptr++;
         }
       }
 
@@ -132,17 +121,13 @@ bool w5100_http_open(uint32_t addr, uint16_t port, const char* selector,
       }
 
       {
-        // One less to allow for faster pre-increment below
-        char *dataptr = buffer + len - 1;
+        char *dataptr = buffer + len;
         uint16_t i;
         for (i = 0; i < rcv; ++i)
         {
-          // The variable is necessary to have cc65 generate code
-          // suitable to access the W5100 auto-increment register.
-          char data = *w5100_data;
-          *++dataptr = data;
+          *dataptr++ = *data;
 
-          if (!memcmp(dataptr - 3, "\r\n\r\n", 4))
+          if (!memcmp(dataptr - 4, "\r\n\r\n", 4))
           {
             rcv = i + 1;
             body = true;
@@ -183,3 +168,31 @@ bool w5100_http_open(uint32_t addr, uint16_t port, const char* selector,
   }
   return true;
 }
+
+bool w5100_http_open_addr(uint32_t addr, uint16_t port, const char* selector,
+                          char* buffer, size_t length)
+{
+  printf("Connecting to %s:%d ", dotted_quad(addr), port);
+
+  if (!w5100_connect_addr(addr, port))
+  {
+    printf("- Connect failed\n");
+    return false;
+  }
+
+  return w5100_http_open(selector, buffer, length);
+}
+
+bool w5100_http_open_name(const char* name, uint8_t name_length, uint16_t port,
+                          const char* selector, char* buffer, size_t buffer_length)
+{
+  printf("Connecting to port %d ", port);
+
+  if (!w5100_connect_name(name, name_length, port))
+  {
+    printf("- Connect failed\n");
+    return false;
+  }
+
+  return w5100_http_open(selector, buffer, buffer_length);
+}
diff --git a/apps/w5100_http.h b/apps/w5100_http.h
index 85aafd9..24dfd8c 100644
--- a/apps/w5100_http.h
+++ b/apps/w5100_http.h
@@ -37,12 +37,20 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <stdint.h>
 #include <stdbool.h>
 
-// Connect to server with IP address <server_addr> on TCP port <server_port>,
-// then HTTP GET <selector> and consume HTTP response header. Provide feedback
-// on progress to the user via STDOUT. After returning from w5100_http_open()
-// the connection is ready to consume the HTTP body.
+// Connect to server with IP address <addr> on TCP port <port>, then HTTP GET
+// <selector> and consume HTTP response header. Provide feedback on progress
+// to the user via STDOUT. After returning from w5100_http_open_addr(), the
+// connection is ready to consume the HTTP body.
 // Return true if the connection is established, return false otherwise.
-bool w5100_http_open(uint32_t addr, uint16_t port, const char* selector,
-                     char* buffer, size_t length);
+bool w5100_http_open_addr(uint32_t addr, uint16_t port, const char* selector,
+                          char* buffer, size_t length);
+
+// Connect to server with name <name>, <name_length> on TCP port <port> using
+// DNS Offloading, then HTTP GET <selector> and consume HTTP response header.
+// Provide feedback on progress to the user via STDOUT. After returning from
+// w5100_http_open_name(), the connection is ready to consume the HTTP body.
+// Return true if the connection is established, return false otherwise.
+bool w5100_http_open_name(const char* name, uint8_t name_length, uint16_t port,
+                          const char* selector, char* buffer, size_t buffer_length);
 
 #endif
diff --git a/apps/wget65.c b/apps/wget65.c
index f513dfb..14bc680 100644
--- a/apps/wget65.c
+++ b/apps/wget65.c
@@ -241,6 +241,7 @@ void exit_on_key(void)
 
 void write_file(const char *name)
 {
+  register volatile uint8_t *data = w5100_data;
   uint16_t i;
   int file;
   uint16_t rcv;
@@ -277,14 +278,10 @@ void write_file(const char *name)
     }
 
     {
-      // One less to allow for faster pre-increment below
-      char *dataptr = buffer + len - 1;
+      char *dataptr = buffer + len;
       for (i = 0; i < rcv; ++i)
       {
-        // The variable is necessary to have cc65 generate code
-        // suitable to access the W5100 auto-increment register.
-        char data = *w5100_data;
-        *++dataptr = data;
+        *dataptr++ = *data;
       }
     }
 
@@ -318,6 +315,7 @@ void write_file(const char *name)
 
 void write_device(char device)
 {
+  register volatile uint8_t *data = w5100_data;
   uint16_t i;
   dhandle_t dio;
   uint16_t rcv;
@@ -383,8 +381,7 @@ void write_device(char device)
           rcv = sizeof(buffer) - len;
         }
 
-        // One less to allow for faster pre-increment below
-        dataptr = buffer + len - 1;
+        dataptr = buffer + len;
       }
       else
       {
@@ -394,16 +391,12 @@ void write_device(char device)
           rcv = 0x100 - len % 0x100;
         }
 
-        // One less to allow for faster pre-increment below
-        dataptr = buffer + (skew[len / 0x100] << 8 | len % 0x100) - 1;
+        dataptr = buffer + (skew[len / 0x100] << 8 | len % 0x100);
       }
 
       for (i = 0; i < rcv; ++i)
       {
-        // The variable is necessary to have cc65 generate code
-        // suitable to access the W5100 auto-increment register.
-        char data = *w5100_data;
-        *++dataptr = data;
+        *dataptr++ = *data;
       }
     }
 
@@ -442,6 +435,7 @@ int main(int, char *argv[])
   uint16_t i;
   char *arg;
   char device;
+  bool Offload_DNS;
   uint8_t eth_init = ETH_INIT_DEFAULT;
 
   if (doesclrscrafterexit())
@@ -475,11 +469,11 @@ int main(int, char *argv[])
     {
       read(file, &eth_init, 1);
       close(file);
-      eth_init &= ~'0';
+      eth_init &= 7;
     }
   }
 
-  printf("- %d\n\nInitializing %s ", eth_init, eth_name);
+  printf("- %u\n\nInitializing %s ", eth_init, eth_name);
   if (ip65_init(eth_init))
   {
     ip65_error_exit();
@@ -488,15 +482,20 @@ int main(int, char *argv[])
   // Abort on Ctrl-C to be consistent with Linenoise
   abort_key = 0x83;
 
-  printf("- Ok\n\nObtaining IP address ");
-  if (dhcp_init())
+  Offload_DNS = w5100_init(eth_init);
+
+  if (!Offload_DNS)
   {
-    ip65_error_exit();
+    printf("- Ok\n\nObtaining IP address ");
+    if (dhcp_init())
+    {
+      ip65_error_exit();
+    }
   }
   printf("- Ok\n\n");
 
   // Copy IP config from IP65 to W5100
-  w5100_config(eth_init);
+  w5100_config();
 
   load_argument("wget.urls");
   while (true)
@@ -504,7 +503,7 @@ int main(int, char *argv[])
     arg = get_argument(1, "URL", url_completion);
 
     printf("\n\nProcessing URL ");
-    if (!url_parse(arg))
+    if (!url_parse(arg, !Offload_DNS))
     {
       break;
     }
@@ -657,9 +656,21 @@ int main(int, char *argv[])
   save_argument("wget.files");
 
   printf("\n\n");
-  if (!w5100_http_open(url_ip, url_port, url_selector, buffer, sizeof(buffer)))
+  if (Offload_DNS)
   {
-    return EXIT_FAILURE;
+    if (!w5100_http_open_name(url_host, strlen(url_host) - 4, url_port,
+                              url_selector, buffer, sizeof(buffer)))
+    {
+      return EXIT_FAILURE;
+    }
+  }
+  else
+  {
+    if (!w5100_http_open_addr(url_ip, url_port,
+                              url_selector, buffer, sizeof(buffer)))
+    {
+      return EXIT_FAILURE;
+    }
   }
 
   if (device)
diff --git a/drivers/Makefile b/drivers/Makefile
index 292d718..03f828c 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -1,23 +1,21 @@
 # For assembler programs
 # ----------------------
-# c64rrnet.lib    : C64 with RR-Net (or clone)
-# c64eth64.lib    : C64 with ETH64
-# c64combo.lib    : C64 with RR-Net or ETH64
-# a2uther.lib     : Apple ][ with Uthernet (default slot: #3)
-# a2lancegs.lib   : Apple ][ with LANceGS (default slot: #3)
-# a2uther2.lib    : Apple ][ with Uthernet II (default slot: #3)
-# a2combo.lib     : Apple ][ with Uthernet or LANceGS or Uthernet II (default slot: #3)
-# atrdragon.lib   : ATARI 8-bit with Dragon Cart
-# atrdracarys.lib : ATARI 8-bit with Dracarys (default PBI device ID: #8)
-# atrcombo.lib    : ATARI 8-bit with Dragon Cart or Dracarys (default PBI device ID: #8)
-# vic20rrnet.lib  : VIC20 with RR-Net (or clone)
+# c64rrnet.lib   : C64 with RR-Net (or clone)
+# c64eth64.lib   : C64 with ETH64
+# c64combo.lib   : C64 with RR-Net or ETH64
+# a2uther.lib    : Apple ][ with Uthernet (default slot: #3)
+# a2uther2.lib   : Apple ][ with Uthernet II (default slot: #3)
+# a2lancegs.lib  : Apple ][ with LANceGS (default slot: #3)
+# a2combo.lib    : Apple ][ with Uthernet or Uthernet II or LANceGS (default slot: #3)
+# atrdragon.lib  : ATARI 8-bit with Dragon Cart
+# vic20rrnet.lib : VIC20 with RR-Net (or clone)
 
 # For C programs
 # --------------
 # ip65_c64.lib     : C64 with RR-Net or ETH64
-# ip65_apple2.lib  : Apple ][ with Uthernet or LANceGS or Uthernet II (default slot: #3)
-# ip65_atari.lib   : ATARI 8-bit with Dragon Cart or Dracarys (default PBI device ID: #8)
-# ip65_atarixl.lib : ATARI XL with Dragon Cart or Dracarys (default PBI device ID: #8)
+# ip65_apple2.lib  : Apple ][ with Uthernet or Uthernet II or LANceGS (default slot: #3)
+# ip65_atari.lib   : ATARI 8-bit with Dragon Cart
+# ip65_atarixl.lib : ATARI XL with Dragon Cart
 
 DRIVERS=\
 	c64rrnet.lib \
@@ -25,14 +23,12 @@ DRIVERS=\
 	c64combo.lib \
 	ip65_c64.lib \
 	a2uther.lib \
-	a2lancegs.lib \
 	a2uther2.lib \
+	a2lancegs.lib \
 	a2combo.lib \
 	ip65_apple2.lib \
 	ip65_apple2_uther2.lib \
 	atrdragon.lib \
-	atrdracarys.lib \
-	atrcombo.lib \
 	ip65_atari.lib \
 	ip65_atarixl.lib \
 	vic20rrnet.lib
@@ -118,9 +114,9 @@ rr-net.o uthernet.o dragoncart.o vic20-rr-net.o: cs8900a.s
 
 eth64.o lancegs.o: lan91c96.s
 
-uthernet2.o dracarys.o: w5100.s
+uthernet2.o: w5100.s
 
-c64combo.o a2combo.o atrcombo.o: ethernetcombo.s
+c64combo.o a2combo.o: ethernetcombo.s
 
 c64rrnet.lib: rr-net.o $(CS8900AOBJS) c64init.o $(C64OBJS)
 
@@ -132,10 +128,10 @@ ip65_c64.lib: rr-net.o eth64.o c64combo.o c64init.o $(C64_OBJS)
 
 a2uther.lib: uthernet.o $(CS8900AOBJS) a2init.o $(A2OBJS)
 
-a2lancegs.lib: lancegs.o $(LAN91C96OBJS) a2init.o $(A2OBJS)
-
 a2uther2.lib: uthernet2.o $(W5100OBJS) a2init.o $(A2OBJS)
 
+a2lancegs.lib: lancegs.o $(LAN91C96OBJS) a2init.o $(A2OBJS)
+
 a2combo.lib: uthernet.o lancegs.o uthernet2.o a2combo.o a2init.o $(A2OBJS)
 
 ip65_apple2.lib: uthernet.o lancegs.o uthernet2.o a2combo.o a2init.o $(A2_OBJS)
@@ -144,13 +140,9 @@ ip65_apple2_uther2.lib: uthernet2.o $(W5100OBJS) a2init.o $(A2_OBJS)
 
 atrdragon.lib: dragoncart.o $(CS8900AOBJS) atrinit.o $(ATROBJS)
 
-atrdracarys.lib: dracarys.o $(W5100OBJS) atrinit.o $(ATROBJS)
+ip65_atari.lib: dragoncart.o $(CS8900AOBJS) atrinit.o $(ATR_OBJS)
 
-atrcombo.lib: dragoncart.o dracarys.o atrcombo.o atrinit.o $(ATROBJS)
-
-ip65_atari.lib: dragoncart.o dracarys.o atrcombo.o atrinit.o $(ATR_OBJS)
-
-ip65_atarixl.lib: dragoncart.o dracarys.o atrcombo.o atrinit.o $(ATRXL_OBJS)
+ip65_atarixl.lib: dragoncart.o $(CS8900AOBJS) atrinit.o $(ATRXL_OBJS)
 
 vic20rrnet.lib: vic20-rr-net.o $(CS8900AOBJS) vic20init.o $(VIC20OBJS)
 
diff --git a/drivers/a2init.s b/drivers/a2init.s
index e93d109..0e3b93b 100644
--- a/drivers/a2init.s
+++ b/drivers/a2init.s
@@ -1 +1 @@
-.exportzp eth_init_default = 5  ; Apple 2 default slot
+.exportzp eth_init_default = 3  ; Apple 2 default slot
diff --git a/drivers/atrinit.s b/drivers/atrinit.s
index 4279c4b..83abea7 100644
--- a/drivers/atrinit.s
+++ b/drivers/atrinit.s
@@ -1 +1 @@
-.exportzp eth_init_default = 8  ; PBI default device ID
+.exportzp eth_init_default = 0
diff --git a/drivers/ethernetcombo.s b/drivers/ethernetcombo.s
index 9b78b98..3ab41c5 100644
--- a/drivers/ethernetcombo.s
+++ b/drivers/ethernetcombo.s
@@ -132,7 +132,7 @@ set_name:
 eth_init:
   sta eth_init_value
 
-.if .defined (__APPLE2__) .or .defined (__ATARI__)
+.if .defined (__APPLE2__)
   ldax #_w5100
   jsr patch_wrapper
   ldax #_w5100_name
diff --git a/drivers/w5100.s b/drivers/w5100.s
index 796f3c6..2e3f5a0 100644
--- a/drivers/w5100.s
+++ b/drivers/w5100.s
@@ -41,12 +41,7 @@
 
 	; Ethernet address
 mac:	.byte	$00, $08, $DC	; OUI of WIZnet
-	.ifdef __APPLE2__
 	.byte	$A2, $A2, $A2
-	.endif
-	.ifdef __ATARI__
-	.byte	$A8, $A8, $A8
-	.endif
 
 	; Buffer attributes
 bufaddr:.res	2		; Address
@@ -91,8 +86,6 @@ tmp	:=	tmp4		; Temporary value
 
 ;=====================================================================
 
-	.ifdef __APPLE2__
-
 	.rodata
 
 fixup:	.byte	fixup02-fixup01, fixup03-fixup02, fixup04-fixup03
@@ -155,54 +148,6 @@ init:
 	bcs :-			; Always
 :
 
-	.endif
-
-;=====================================================================
-
-	.ifdef __ATARI__
-
-	.rodata
-
-pdtab:	.byte	%00000001
-	.byte	%00000010
-	.byte	%00000100
-	.byte	%00001000
-	.byte	%00010000
-	.byte	%00100000
-	.byte	%01000000
-	.byte	%10000000
-
-;---------------------------------------------------------------------
-
-	.bss
-
-pdbit:	.res	1
-
-;---------------------------------------------------------------------
-
-mode		:= $D1F0
-addr		:= $D1F1
-data		:= $D1F3
-
-pdvs		:= $D1FF	; parallel device select
-shpdvs		:= $0248	; shadow parallel device select
-
-;---------------------------------------------------------------------
-
-	.code
-
-init:
-	; Convert parallel device ID (1-8) to parallel device bit
-	tay
-	lda pdtab-1,y
-	sta pdbit
-
-	; Select parallel device
-	sta shpdvs
-	sta pdvs
-
-	.endif
-
 ;=====================================================================
 
 	; Indirect Bus I/F mode, Address Auto-Increment
@@ -287,13 +232,6 @@ fixup14:sta data
 ;---------------------------------------------------------------------
 
 poll:
-	.ifdef __ATARI__
-	; Select parallel device
-	lda pdbit
-	sta shpdvs
-	sta pdvs
-	.endif
-
 	; Check for completion of previous command
 	; Socket 0 Command Register: = 0 ?
 	jsr set_addrcmdreg0
@@ -401,13 +339,6 @@ send:
 	sta adv
 	stx adv+1
 
-	.ifdef __ATARI__
-	; Select parallel device
-	lda pdbit
-	sta shpdvs
-	sta pdvs
-	.endif
-
 	; Set parameters for transmitting data
 	lda #>$4000		; Socket 0 TX Base Address
 	ldx #$01		; Write
diff --git a/inc/ip65.h b/inc/ip65.h
index 5258b8c..1ef1072 100644
--- a/inc/ip65.h
+++ b/inc/ip65.h
@@ -7,9 +7,7 @@
 // Ethernet driver initialization parameter values
 //
 #if defined(__APPLE2__)
-#define ETH_INIT_DEFAULT 5  // Apple II slot number
-#elif defined(__ATARI__)
-#define ETH_INIT_DEFAULT 8  // ATARI PBI device ID
+#define ETH_INIT_DEFAULT 3  // Apple II slot number
 #else
 #define ETH_INIT_DEFAULT 0  // Unused
 #endif
@@ -294,16 +292,18 @@ bool __fastcall__ tftp_upload_from_memory(uint32_t server, const char* name,
 //
 // On success the variables url_ip, url_port and url_selector (see below) are valid.
 //
-// Inputs: url: Zero (or ctrl char) terminated string containing the URL
+// Inputs: url:     Zero (or ctrl char) terminated string containing the URL
+//         resolve: Resolve host in URL
 // Output: true if an error occured, false otherwise
 //
-bool __fastcall__ url_parse(const char* url);
+bool __fastcall__ url_parse(const char* url, bool resolve);
 
 // Access to parsed HTTP URL
 //
-// Access to the three items below is only valid after url_parse returned false.
+// Access to the four items below is only valid after url_parse returned false.
 //
-extern uint32_t url_ip;         // IP address of host in URL
+extern char*    url_host;       // Zero terminated string containing host in URL + "\r\n\r\n"
+extern uint32_t url_ip;         // IP address of host in URL (only if 'resolve' is true)
 extern uint16_t url_port;       // Port number of URL
 extern char*    url_selector;   // Zero terminated string containing selector part of URL
 
diff --git a/ip65/dhcp.s b/ip65/dhcp.s
index 3cacefa..4283dd6 100644
--- a/ip65/dhcp.s
+++ b/ip65/dhcp.s
@@ -85,6 +85,7 @@ dhcp_message_sent_count: .res 1
 dhcp_timer:              .res 1
 dhcp_loop_count:         .res 1
 dhcp_break_polling_loop: .res 1
+dhcp_ip:                 .res 4
 
 ; DHCP constants
 BOOTREQUEST   = 1
@@ -315,9 +316,9 @@ dhcp_in:
   cmp dhcp_inp+dhcp_yiaddr      ; is the first byte in the assigned address 0?
   bne :+
   rts                           ; if so, it's a bogus response - ignore
-: ldx #4                        ; copy the our new IP address
+: ldx #3                        ; copy the new IP address
 : lda dhcp_inp+dhcp_yiaddr,x
-  sta cfg_ip,x
+  sta dhcp_ip,x
   dex
   bpl :-
 
@@ -423,7 +424,7 @@ send_dhcprequest:
   ldx #4                        ; option length is 4
   stx output_buffer+dhcp_options+4
   dex
-: lda cfg_ip,x
+: lda dhcp_ip,x
   sta output_buffer+dhcp_options+5,x
   dex
   bpl :-
@@ -449,9 +450,16 @@ send_dhcprequest:
 
   ldax #output_buffer
   jsr udp_send
-  bcs :+                        ; if we didn't send the message we probably need to wait for an ARP reply to come back.
+  bcs :++                       ; if we didn't send the message we probably need to wait for an ARP reply to come back.
+
   lda #dhcp_bound               ; technically, we should wait till we get a DHCPACK message. but we'll assume success
   sta dhcp_state
+  ldx #3                        ; set the new IP address
+: lda dhcp_ip,x
+  sta cfg_ip,x
+  dex
+  bpl :-
+
 : rts
 
 
diff --git a/ip65/download.s b/ip65/download.s
index 459a03a..54fd420 100644
--- a/ip65/download.s
+++ b/ip65/download.s
@@ -61,6 +61,7 @@ url_download:
   sty url_selector
   ldy url_download_buffer+1
   sty url_selector+1
+  ldy #1
   jsr url_parse_buffer
   bcc resource_download
   rts
diff --git a/ip65/udp_c.s b/ip65/udp_c.s
index d45c285..25ba614 100644
--- a/ip65/udp_c.s
+++ b/ip65/udp_c.s
@@ -65,7 +65,7 @@ _udp_recv_src_port:
   ldx udp_inp+udp_src_port
   rts
 
-  _udp_send:
+_udp_send:
   stax udp_send_src_port
   jsr popax
   stax udp_send_dest_port
diff --git a/ip65/url.s b/ip65/url.s
index d9e48f9..2915295 100644
--- a/ip65/url.s
+++ b/ip65/url.s
@@ -13,6 +13,7 @@
 .import parse_integer
 .import dns_ip
 
+.export url_host
 .export url_ip
 .export url_port
 .export url_selector
@@ -26,7 +27,8 @@ search_string   = ptr1
 .bss
 
   url_string:           .res 2
-  url_ip:               .res 4  ; will be set with ip address of host in url
+  url_host:             .res 2  ; will be set with hostname + CRLFCRLF
+  url_ip:               .res 4  ; will be set with ip address of host in url (if resolve)
   url_port:             .res 2  ; will be set with port number of url
   url_selector:         .res 2  ; will be set with address of selector part of URL
   url_type:             .res 1
@@ -35,6 +37,7 @@ search_string   = ptr1
   url_type_gopher  = 1
   url_type_http    = 2
 
+  resolve:              .res 1
   src_ptr:              .res 1
   dest_ptr:             .res 1
 
@@ -46,28 +49,33 @@ search_string   = ptr1
 ; inputs:
 ; AX = address of URL string
 ; any control character (i.e. <$20) is treated as 'end of string', e.g. a CR or LF, as well as $00
+; Y = do resolve hostname
 ; outputs:
 ; sec if a malformed url, otherwise:
 ; url_ip = ip address of host in url
 ; url_port = port number of url
 ; url_selector = address of selector part of URL
 url_parse:
+  sty resolve
   ldy #<output_buffer
   sty url_selector
   ldy #>output_buffer
   sty url_selector+1
+  ldy resolve
 
 ; parses a URL into a form that makes it easy to retrieve the specified resource
 ; caution - the resulting selector part of URL must fit into the provided buffer !!!
 ; inputs:
 ; AX = address of URL string
 ; any control character (i.e. <$20) is treated as 'end of string', e.g. a CR or LF, as well as $00
+; Y = do resolve hostname
 ; url_selector = points to a buffer that selector part of URL will be placed into
 ; outputs:
 ; sec if a malformed url, otherwise:
 ; url_ip = ip address of host in url
 ; url_port = port number of url
 url_parse_buffer:
+  sty resolve
   stax url_string
   ldy #url_type_http
   sty url_type
@@ -109,6 +117,8 @@ lda #url_type_gopher
   ; now pointing at hostname
   bcs @exit_with_error
 @no_protocol_specifier:
+  ldy resolve
+  beq @no_resolve
   jsr dns_set_hostname
   bcs @exit_with_sec
   jsr dns_resolve
@@ -125,6 +135,7 @@ lda #url_type_gopher
 
   jsr skip_to_hostname
 
+@no_resolve:
   ; skip over next colon
   ldax #colon
   jsr parser_skip_next
@@ -212,11 +223,17 @@ lda #url_type_gopher
   jsr skip_to_hostname
   ; AX now pointing at hostname
   stax ptr1
+
+  clc
   lda url_selector
   sta ptr2
+  adc dest_ptr
+  sta url_host
   pla
   sta ptr2+1
-
+  adc #0
+  sta url_host+1
+  
   lda #0
   sta src_ptr
 
diff --git a/ip65/url_c.s b/ip65/url_c.s
index 17bb58f..9c0b7ff 100644
--- a/ip65/url_c.s
+++ b/ip65/url_c.s
@@ -1,22 +1,32 @@
 .include "../inc/common.inc"
 
 .export _url_parse
+.export _url_host
 .export _url_ip
 .export _url_port
 .export _url_selector
 
 .import url_parse
+.import url_host
 .import url_ip
 .import url_port
 .import url_selector
 
+.import popax
+.importzp tmp1
+
 _url_parse:
+  sta tmp1
+  jsr popax
+  ldy tmp1
   jsr url_parse
   ldx #$00
   txa
   rol
   rts
 
+_url_host := url_host
+
 _url_ip := url_ip
 
 _url_port := url_port
diff --git a/test/Makefile b/test/Makefile
index cd10c21..4f22253 100644
--- a/test/Makefile
+++ b/test/Makefile
@@ -17,15 +17,14 @@ else ifeq ($(eth),sm)
   A2DRIVERLIB  = ../drivers/a2lancegs.lib
 else ifeq ($(eth),wn)
   A2DRIVERLIB  = ../drivers/a2uther2.lib
-  ATRDRIVERLIB = ../drivers/atrdracarys.lib
 else
   C64DRIVERLIB = ../drivers/c64combo.lib
   A2DRIVERLIB  = ../drivers/a2combo.lib
-  ATRDRIVERLIB = ../drivers/atrcombo.lib
+  ATRDRIVERLIB = ../drivers/atrdragon.lib
   VICDRIVERLIB = ../drivers/vic20rrnet.lib
 endif
 
-# See http://vice-emu.sourceforge.net/
+# See https://vice-emu.sourceforge.net/
 C1541 ?= c1541
 
 # See https://applecommander.github.io/
@@ -112,32 +111,28 @@ vt100.com: ATARI_CFG = ../apps/atrtelnet.cfg
 %.o: %.c
 
 %.prg: %.o ip65 drivers
-	ld65 -o $*.prg -C c64.cfg -m $*.c64.map -vm $< $(IP65LIB) $(C64DRIVERLIB) c64.lib
+	ld65 -o $*.prg -C c64.cfg -m $*.prg.map -vm $< $(IP65LIB) $(C64DRIVERLIB) c64.lib
 
 %.bin: %.o ip65 drivers
-	ld65 -o $*.bin -C apple2.cfg -m $*.a2.map -vm $< $(IP65LIB) $(A2DRIVERLIB) apple2.lib
+	ld65 -o $*.bin -C apple2.cfg -m $*.bin.map -vm $< $(IP65LIB) $(A2DRIVERLIB) apple2.lib
 
 %.com: %.o ip65 drivers
-	ld65 -o $*.com -C $(ATARI_CFG) -m $*.atr.map -vm $< $(IP65LIB) $(ATRDRIVERLIB) atari.lib
+	ld65 -o $*.com -C $(ATARI_CFG) -m $*.com.map -vm $< $(IP65LIB) $(ATRDRIVERLIB) atari.lib
 
 %.vicprg: %.o ip65 drivers
-	ld65 -o $*.vicprg -C vic20-32k.cfg -m $*.vic.map -vm $< $(IP65LIB) $(VICDRIVERLIB) vic20.lib
+	ld65 -o $*.vicprg -C vic20-32k.cfg -m $*.vicprg.map -vm $< $(IP65LIB) $(VICDRIVERLIB) vic20.lib
 
 %.prg: %.c ip65 drivers
-	cl65 -o $*.prg -O -t c64 -m $*.c64.map -vm $< $(wildcard $**.s) $(IP65LIB) ../drivers/ip65_c64.lib
-	rm $*.o
+	cl65 -o $*.prg -O -t c64 -m $*.prg.map -vm $< $(wildcard $**.s) $(IP65LIB) ../drivers/ip65_c64.lib
 
 %.bin: %.c ip65 drivers
-	cl65 -o $*.bin -O -t apple2 -m $*.a2.map -vm $< $(wildcard $**.s) $(IP65LIB) ../drivers/ip65_apple2.lib
-	rm $*.o
+	cl65 -o $*.bin -O -t apple2 -m $*.bin.map -vm $< $(wildcard $**.s) $(IP65LIB) ../drivers/ip65_apple2.lib
 
 %.com: %.c ip65 drivers
-	cl65 -o $*.com -O -t atari -m $*.atr.map -vm $< $(wildcard $**.s) $(IP65LIB) ../drivers/ip65_atari.lib
-	rm $*.o
+	cl65 -o $*.com -O -t atari -m $*.com.map -vm $< $(wildcard $**.s) $(IP65LIB) ../drivers/ip65_atari.lib
 
 %.xl.com: %.c ip65 drivers
-	cl65 -o $*.xl.com -O -t atarixl -m $*.atrxl.map -vm $< $(wildcard $**.s) $(IP65LIB) ../drivers/ip65_atarixl.lib
-	rm $*.o
+	cl65 -o $*.xl.com -O -t atarixl -m $*.xl.com.map -vm $< $(wildcard $**.s) $(IP65LIB) ../drivers/ip65_atarixl.lib
 
 ip65test.d64: prg
 	$(C1541) -format ip65,00 d64 $@
diff --git a/test/geturl.s b/test/geturl.s
index f9deff3..301daac 100644
--- a/test/geturl.s
+++ b/test/geturl.s
@@ -17,7 +17,6 @@
 .import url_port
 .import url_selector
 .import url_resource_type
-.import url_parse
 .import url_download
 .import url_download_buffer
 .import url_download_buffer_length
diff --git a/test/parser.s b/test/parser.s
index d164122..847c859 100644
--- a/test/parser.s
+++ b/test/parser.s
@@ -100,6 +100,7 @@ test_url_parse:
   jsr print
   jsr print_cr
   ldax temp_url_ptr
+  ldy #1
   jsr url_parse
   bcc :+
   jmp print_errorcode