diff --git a/index.html b/index.html
index a58cfea8..32e7cad5 100644
--- a/index.html
+++ b/index.html
@@ -122,14 +122,19 @@ if (window.location.host.endsWith('8bitworkshop.com')) {
         </ul>
       </li>
       <hr>
+      <li class="dropdown dropdown-submenu">
+        <a tabindex="-1" href="#">Help</a>
+        <ul class="dropdown-menu" id="help_menu">
+          <li><a class="dropdown-item" target="_8bws_help" href="https://8bitworkshop.com/docs/docs/ide.html">IDE Help</a></li>
+        </ul>
+      </li>
       <li class="dropdown dropdown-submenu">
         <a tabindex="-1" href="#">About</a>
         <ul class="dropdown-menu">
-          <li><a class="dropdown-item" target="_8bws_about" href="https://8bitworkshop.com/">Website</a></li>
-          <li><a class="dropdown-item" target="_8bws_about" href="https://twitter.com/8bitworkshop">Twitter</a></li>
-          <li><a class="dropdown-item" target="_8bws_about" href="https://8bitworkshop.com/docs/blog.html">Latest News</a></li>
-          <li><a class="dropdown-item" target="_8bws_about" href="https://github.com/sehugg/8bitworkshop/issues/new">Report an Issue</a></li>
-          <li><a class="dropdown-item" target="_8bws_about" href="https://8bitworkshop.com/docs/docs/ide.html">User Manual</a></li>
+          <li><a class="dropdown-item" target="_8bws_help" href="https://8bitworkshop.com/">Website</a></li>
+          <li><a class="dropdown-item" target="_8bws_help" href="https://twitter.com/8bitworkshop">Twitter</a></li>
+          <li><a class="dropdown-item" target="_8bws_help" href="https://8bitworkshop.com/docs/blog.html">Latest News</a></li>
+          <li><a class="dropdown-item" target="_8bws_help" href="https://github.com/sehugg/8bitworkshop/issues/new">Report an Issue</a></li>
         </ul>
       </li>
       <!--
diff --git a/src/common/baseplatform.ts b/src/common/baseplatform.ts
index 69d4d1c6..78820664 100644
--- a/src/common/baseplatform.ts
+++ b/src/common/baseplatform.ts
@@ -127,7 +127,7 @@ export interface Platform {
   setRecorder?(recorder : EmuRecorder) : void;
   advance?(novideo? : boolean) : number;
   advanceFrameClock?(trap:DebugCondition, step:number) : number;
-  showHelp?(tool:string, ident?:string) : void;
+  showHelp?() : string;
   resize?() : void;
 
   getRasterScanline?() : number;
diff --git a/src/ide/ui.ts b/src/ide/ui.ts
index 93c3e16f..47e9f8af 100644
--- a/src/ide/ui.ts
+++ b/src/ide/ui.ts
@@ -61,6 +61,7 @@ export var platform_id : string;	// platform ID string (platform)
 export var store_id : string;		// store ID string (repo || platform)
 export var repo_id : string;		// repository ID (repo)
 export var platform : Platform;		// emulator object
+var platform_name : string;	// platform name (after setPlatformUI)
 
 var toolbar = $("#controls_top");
 
@@ -126,12 +127,17 @@ const TOOL_TO_SOURCE_STYLE = {
 }
 
 const TOOL_TO_HELPURL = {
-  'dasm': 'https://github.com/dasm-assembler/dasm/blob/master/docs/dasm.pdf',
+  'dasm': 'https://raw.githubusercontent.com/sehugg/dasm/master/doc/dasm.txt',
   'cc65': 'https://cc65.github.io/doc/cc65.html',
   'ca65': 'https://cc65.github.io/doc/ca65.html',
   'sdcc': 'http://sdcc.sourceforge.net/doc/sdccman.pdf',
   'verilator': 'https://www.veripool.org/ftp/verilator_doc.pdf',
-  'fastbasic': 'https://github.com/dmsc/fastbasic/blob/master/manual.md'  
+  'fastbasic': 'https://github.com/dmsc/fastbasic/blob/master/manual.md',
+  'bataribasic': "help/bataribasic/manual.html",
+  'wiz': "https://github.com/wiz-lang/wiz/blob/master/readme.md#wiz",
+  'silice': "https://github.com/sylefeb/Silice",
+  'zmac': "https://raw.githubusercontent.com/sehugg/zmac/master/doc.txt",
+  'cmoc': "http://perso.b2b2c.ca/~sarrazip/dev/cmoc.html",
 }
 
 function gaEvent(category:string, action:string, label?:string, value?:string) {
@@ -264,6 +270,19 @@ function setBusyStatus(busy: boolean) {
   $('#compile_spinner').css('visibility', busy ? 'visible' : 'hidden');
 }
 
+function newDropdownListItem(id, text) {
+  var li = document.createElement("li");
+  var a = document.createElement("a");
+  a.setAttribute("class", "dropdown-item");
+  a.setAttribute("href", "#");
+  a.setAttribute("data-wndid", id);
+  if (id == projectWindows.getActiveID())
+    $(a).addClass("dropdown-item-checked");
+  a.appendChild(document.createTextNode(text));
+  li.appendChild(a);
+  return {li, a};
+}
+
 function refreshWindowList() {
   var ul = $("#windowMenuList").empty();
   var separate = false;
@@ -273,15 +292,7 @@ function refreshWindowList() {
       ul.append(document.createElement("hr"));
       separate = false;
     }
-    var li = document.createElement("li");
-    var a = document.createElement("a");
-    a.setAttribute("class", "dropdown-item");
-    a.setAttribute("href", "#");
-    a.setAttribute("data-wndid", id);
-    if (id == projectWindows.getActiveID())
-      $(a).addClass("dropdown-item-checked");
-    a.appendChild(document.createTextNode(name));
-    li.appendChild(a);
+    let {li,a} = newDropdownListItem(id, name);
     ul.append(li);
     if (createfn) {
       var onopen = (id, wnd) => {
@@ -1813,13 +1824,6 @@ function _toggleRecording() {
   }
 }
 
-function _lookupHelp() {
-  if (platform.showHelp) {
-    let tool = platform.getToolForFilename(current_project.mainPath);
-    platform.showHelp(tool); // TODO: tool, identifier
-  }
-}
-
 function addFileToProject(type, ext, linefn) {
   var wnd = projectWindows.getActive();
   if (wnd && wnd.insertText) {
@@ -1954,10 +1958,7 @@ function setupDebugControls() {
   $("#item_addfile_link").click(_addLinkFile);
   $("#item_request_persist").click(() => requestPersistPermission(true, false));
   updateDebugWindows();
-  // show help button?
-  if (platform.showHelp) {
-    uitoolbar.add('ctrl+alt+?', 'Show Help', 'glyphicon-question-sign', _lookupHelp);
-  }
+  // code analyzer?
   if (platform.newCodeAnalyzer) {
     uitoolbar.add(null, 'Analyze CPU Timing', 'glyphicon-time', traceTiming);
   }
@@ -1965,6 +1966,20 @@ function setupDebugControls() {
   if (platform.setRecorder && platform.advance) {
     setupReplaySlider();
   }
+  // help menu items
+  if (platform.showHelp) {
+    let {li,a} = newDropdownListItem('help__'+platform_id, platform_name+' Help');
+    $("#help_menu").append(li);
+    $(a).click(() => window.open(platform.showHelp(), '_8bws_help'));
+  }
+  // tool help
+  let tool = platform.getToolForFilename(getCurrentMainFilename());
+  let toolhelpurl = TOOL_TO_HELPURL[tool];
+  if (toolhelpurl) {
+    let {li,a} = newDropdownListItem('help__'+tool, tool+' Help');
+    $("#help_menu").append(li);
+    $(a).click(() => window.open(toolhelpurl, '_8bws_help'));
+  }
 }
 
 function setupReplaySlider() {
@@ -2405,7 +2420,8 @@ function setPlatformUI() {
     menuitem.addClass("dropdown-item-checked");
     name = name || menuitem.text() || name;
   }
-  $(".platform_name").text(name || platform_id);
+  platform_name = name || platform_id;
+  $(".platform_name").text(platform_name);
 }
 
 export function getPlatformAndRepo() {
diff --git a/src/platform/astrocade.ts b/src/platform/astrocade.ts
index 60063b93..bfdbcc77 100644
--- a/src/platform/astrocade.ts
+++ b/src/platform/astrocade.ts
@@ -39,9 +39,7 @@ class BallyAstrocadePlatform extends BaseZ80MachinePlatform<BallyAstrocade> impl
       {name:'Screen RAM',start:0x4000,size:0x1000,type:'ram'},
       {name:'BIOS Variables',start:0x4fce,size:0x5000-0x4fce,type:'ram'},
   ] } };
-  showHelp(tool:string, ident:string) {
-    window.open("https://8bitworkshop.com/docs/platforms/astrocade/", "_help"); // TODO
-  }
+  showHelp() { return "https://8bitworkshop.com/docs/platforms/astrocade/"; }
 }
 
 class BallyAstrocadeBIOSPlatform extends BallyAstrocadePlatform implements Platform {
diff --git a/src/platform/atari8.ts b/src/platform/atari8.ts
index cd485044..27b4820d 100644
--- a/src/platform/atari8.ts
+++ b/src/platform/atari8.ts
@@ -147,11 +147,8 @@ function atari8_getROMExtension(rom: Uint8Array) {
   else return ".rom";
 }
 
-function atari8_showHelp(tool: string, ident: string) {
-  if (tool == 'fastbasic')
-    window.open("https://github.com/dmsc/fastbasic/blob/master/manual.md", "_help");
-  else
-    window.open("https://8bitworkshop.com/docs/platforms/atari8/", "_help");
+function atari8_showHelp() {
+  return "https://8bitworkshop.com/docs/platforms/atari8/";
 }
 
 ///
diff --git a/src/platform/basic.ts b/src/platform/basic.ts
index f220ba20..0fab306a 100644
--- a/src/platform/basic.ts
+++ b/src/platform/basic.ts
@@ -207,8 +207,8 @@ class BASICPlatform implements Platform {
         let o = this.runtime.vars[sym];
         if (o != null) return `${sym} = ${o}`;
     }
-    showHelp(tool:string, ident:string) {
-        window.open("https://8bitworkshop.com/docs/platforms/basic/#basicreference", "_help");
+    showHelp() {
+        return "https://8bitworkshop.com/docs/platforms/basic/";
     }
 
     getDebugCategories() {
diff --git a/src/platform/c64.ts b/src/platform/c64.ts
index b2189b59..f28dabb9 100644
--- a/src/platform/c64.ts
+++ b/src/platform/c64.ts
@@ -58,9 +58,7 @@ class C64WASMPlatform extends Base6502MachinePlatform<C64_WASMMachine> implement
   getDefaultExtension() { return ".c"; };
   readAddress(a)        { return this.machine.readConst(a); }
   getMemoryMap()        { return C64_MEMORY_MAP; }
-  showHelp() {
-    window.open("https://8bitworkshop.com/docs/platforms/c64/", "_help");
-  }
+  showHelp()            { return "https://8bitworkshop.com/docs/platforms/c64/" }
   getROMExtension(rom:Uint8Array) { 
     /*
     if (rom && rom[0] == 0x00 && rom[1] == 0x80 && rom[2+4] == 0xc3 && rom[2+5] == 0xc2) return ".crt";
diff --git a/src/platform/coleco.ts b/src/platform/coleco.ts
index a937989f..eaaf9bd4 100644
--- a/src/platform/coleco.ts
+++ b/src/platform/coleco.ts
@@ -33,8 +33,8 @@ class ColecoVisionPlatform extends BaseZ80MachinePlatform<ColecoVision> implemen
       {name:'BIOS',start:0x0,size:0x2000,type:'rom'},
       {name:'Cartridge Header',start:0x8000,size:0x100,type:'rom'},
   ] } };
-  showHelp(tool:string, ident:string) {
-    window.open("https://8bitworkshop.com/docs/platforms/coleco/", "_help");
+  showHelp() {
+    return "https://8bitworkshop.com/docs/platforms/coleco/";
   }
 }
 
diff --git a/src/platform/cpc.ts b/src/platform/cpc.ts
index d0253154..34687e78 100644
--- a/src/platform/cpc.ts
+++ b/src/platform/cpc.ts
@@ -31,7 +31,7 @@ class CPCWASMPlatform extends BaseZ80MachinePlatform<CPC_WASMMachine> implements
   readAddress(a)        { return this.machine.readConst(a); }
   getMemoryMap()        { return CPC_MEMORY_MAP; }
   showHelp() {
-    window.open("http://lronaldo.github.io/cpctelera/files/readme-txt.html", "_help");
+    return "http://lronaldo.github.io/cpctelera/files/readme-txt.html"; // TODO
   }
 }
 
diff --git a/src/platform/galaxian.ts b/src/platform/galaxian.ts
index 8fadba6b..43371c19 100644
--- a/src/platform/galaxian.ts
+++ b/src/platform/galaxian.ts
@@ -22,6 +22,7 @@ class GalaxianPlatform extends BaseZ80MachinePlatform<GalaxianMachine> implement
     {name:'Sprite RAM',start:0x5800,size:0x100,type:'ram'},
     {name:'I/O Registers',start:0x6000,size:0x2000,type:'io'},
   ] } };
+  showHelp() { return "https://8bitworkshop.com/docs/platforms/arcade/index.html#galaxian-scramble" }
 }
 
 class GalaxianScramblePlatform extends GalaxianPlatform implements Platform {
diff --git a/src/platform/markdown.ts b/src/platform/markdown.ts
index 2ed23f19..bbf24f69 100644
--- a/src/platform/markdown.ts
+++ b/src/platform/markdown.ts
@@ -42,7 +42,7 @@ class MarkdownPlatform implements Platform {
     ];
   }
   showHelp() {
-    window.open("https://github.com/showdownjs/showdown/wiki/Showdown's-Markdown-syntax", "_help");
+    return "https://github.com/showdownjs/showdown/wiki/Showdown's-Markdown-syntax";
   }
 }
 
diff --git a/src/platform/mw8080bw.ts b/src/platform/mw8080bw.ts
index 5c71f13f..3ea398c6 100644
--- a/src/platform/mw8080bw.ts
+++ b/src/platform/mw8080bw.ts
@@ -21,7 +21,7 @@ class Midway8080BWPlatform extends BaseZ80MachinePlatform<Midway8080> implements
   getMemoryMap = function() { return { main:[
       {name:'Frame Buffer',start:0x2400,size:7168,type:'ram'},
   ] } };
-
+  showHelp() { return "https://8bitworkshop.com/docs/platforms/arcade/index.html#midway-8080" }
 }
 
 
diff --git a/src/platform/nes.ts b/src/platform/nes.ts
index c8a99c10..6fab6bd4 100644
--- a/src/platform/nes.ts
+++ b/src/platform/nes.ts
@@ -487,8 +487,8 @@ class JSNESPlatform extends Base6502Platform implements Platform, Probeable {
       {name:'Optional Cartridge RAM',start:0x6000,size:0x2000,type:'ram'},
   ] } };
 
-  showHelp(tool:string, ident:string) {
-    window.open("https://8bitworkshop.com/docs/platforms/nes/", "_help"); // TODO
+  showHelp() {
+    return "https://8bitworkshop.com/docs/platforms/nes/";
   }
 
   getDebugSymbolFile() {
diff --git a/src/platform/vcs.ts b/src/platform/vcs.ts
index c045ca12..ec5306cf 100644
--- a/src/platform/vcs.ts
+++ b/src/platform/vcs.ts
@@ -331,13 +331,8 @@ class VCSPlatform extends BasePlatform {
     return disassemble6502(pc, read(pc), read(pc+1), read(pc+2));
   }
 
-  showHelp(tool:string, ident:string) {
-    if (tool == 'bataribasic')
-      window.open("help/bataribasic/manual.html", "_help");
-    else if (tool == 'wiz')
-      window.open("https://github.com/wiz-lang/wiz/blob/master/readme.md#wiz", "_help");
-    else
-      window.open("https://8bitworkshop.com/docs/platforms/vcs/", "_help"); // TODO
+  showHelp() {
+    return "https://8bitworkshop.com/docs/platforms/vcs/";
   }
 
   getMemoryMap = function() { return {main:[
diff --git a/src/platform/vector.ts b/src/platform/vector.ts
index 2df13cc2..3577b453 100644
--- a/src/platform/vector.ts
+++ b/src/platform/vector.ts
@@ -55,6 +55,10 @@ var AtariVectorPlatform = function(mainElement) {
 
   this.__proto__ = new (Base6502Platform as any)();
 
+  this.showHelp = function() {
+    return "https://8bitworkshop.com/docs/platforms/arcade/index.html#vector-games"
+  }
+
   this.getPresets = function() {
     return VECTOR_PRESETS;
   }
diff --git a/src/platform/verilog.ts b/src/platform/verilog.ts
index 477381d0..b8176605 100644
--- a/src/platform/verilog.ts
+++ b/src/platform/verilog.ts
@@ -790,11 +790,8 @@ var VerilogPlatform = function(mainElement, options) {
   getHDLModuleRunner() {
     return top;
   }
-  showHelp?(tool:string, ident?:string) : void {
-    if (tool == 'silice')
-      window.open("'https://github.com/sylefeb/Silice'", "_help");
-    else
-      window.open("https://8bitworkshop.com/docs/platforms/verilog/");
+  showHelp() {
+    return "https://8bitworkshop.com/docs/platforms/verilog/";
   }
 
  } // end of inner class
diff --git a/src/platform/vic20.ts b/src/platform/vic20.ts
index 701afe94..72712efa 100644
--- a/src/platform/vic20.ts
+++ b/src/platform/vic20.ts
@@ -36,7 +36,7 @@ class VIC20WASMPlatform extends Base6502MachinePlatform<VIC20_WASMMachine> imple
   readAddress(a)        { return this.machine.readConst(a); }
   getMemoryMap()        { return VIC20_MEMORY_MAP; }
   showHelp() {
-    window.open("https://8bitworkshop.com/docs/platforms/vic20/", "_help");
+    return "https://8bitworkshop.com/docs/platforms/vic20/";
   }
   getROMExtension(rom:Uint8Array) { 
     /*
diff --git a/src/platform/vicdual.ts b/src/platform/vicdual.ts
index fe081567..3ce42a2c 100644
--- a/src/platform/vicdual.ts
+++ b/src/platform/vicdual.ts
@@ -25,6 +25,7 @@ class VicDualPlatform extends BaseZ80MachinePlatform<VicDual> implements Platfor
       {name:'Cell RAM',start:0xe000,size:32*32,type:'ram'},
       {name:'Tile RAM',start:0xe800,size:256*8,type:'ram'},
   ] } };
+  showHelp() { return "https://8bitworkshop.com/docs/platforms/arcade/index.html#vic-dual" }
 }
 
 PLATFORMS['vicdual'] = VicDualPlatform;
diff --git a/src/platform/williams.ts b/src/platform/williams.ts
index 0d478eef..1e6657a6 100644
--- a/src/platform/williams.ts
+++ b/src/platform/williams.ts
@@ -436,6 +436,9 @@ var WilliamsPlatform = function(mainElement, proto, options) {
       {name:'Video RAM',start:0x0000,size:0xc000,type:'ram'},
       {name:'I/O Registers',start:0xc000,size:0x1000,type:'io'},
   ] } };
+  this.showHelp = function() {
+    return "https://8bitworkshop.com/docs/platforms/arcade/#williams-hardware"
+  }
 }
 
 var Williams6809Platform = function(mainElement, options) {
diff --git a/src/platform/zmachine.ts b/src/platform/zmachine.ts
index 2097d5a1..7917193a 100644
--- a/src/platform/zmachine.ts
+++ b/src/platform/zmachine.ts
@@ -709,10 +709,8 @@ class ZmachinePlatform implements Platform {
     getDefaultExtension(): string {
         return ".inf";
     }
-    showHelp(tool: string, ident?: string) {
-        switch (tool) {
-            case 'inform6': window.open("https://www.inform-fiction.org/manual/html/contents.html"); break;
-        }
+    showHelp() {
+        return "https://www.inform-fiction.org/manual/html/contents.html";
     }
     getPresets(): Preset[] {
         return ZMACHINE_PRESETS;
diff --git a/src/platform/zx.ts b/src/platform/zx.ts
index 3ccb2279..c6dffb5f 100644
--- a/src/platform/zx.ts
+++ b/src/platform/zx.ts
@@ -28,7 +28,7 @@ class ZXWASMPlatform extends BaseZ80MachinePlatform<ZX_WASMMachine> implements P
   readAddress(a)        { return this.machine.readConst(a); }
   getMemoryMap()        { return ZX_MEMORY_MAP; }
   showHelp() {
-    window.open("https://worldofspectrum.org/faq/reference/reference.htm", "_help");
+    return "https://worldofspectrum.org/faq/reference/reference.htm"; // TODO
   }
 }