diff --git a/toolbox/mm.cpp b/toolbox/mm.cpp
index e7a7acb..f1778e3 100644
--- a/toolbox/mm.cpp
+++ b/toolbox/mm.cpp
@@ -1474,4 +1474,73 @@ namespace MM
 
 		return SetMemError(0);
 	}
+
+	uint16_t TempNewHandle(void)
+	{
+		// FUNCTION TempNewHandle (logicalSize: Size;
+		//                         VAR resultCode: OSErr): Handle;
+		uint16_t rv;
+		uint32_t logicalSize;
+		uint32_t resultCode;
+		uint32_t theHandle;
+
+		uint32_t sp = StackFrame<8>(logicalSize, resultCode);
+
+		Log("     TempNewHandle(%08x, %08x)\n", logicalSize, resultCode);
+
+		rv = Native::NewHandle(logicalSize, true, theHandle);
+
+		if (resultCode) memoryWriteWord(rv, resultCode);
+		ToolReturn<4>(sp, theHandle);
+		return rv;
+	}
+
+	uint16_t TempHLock(void)
+	{
+		// PROCEDURE TempHLock (theHandle: Handle; VAR resultCode: OSErr);	
+		uint32_t theHandle;
+		uint32_t resultCode;
+
+		StackFrame<8>(theHandle, resultCode);
+
+		Log("     TempHLock(%08x, %08x)\n", theHandle, resultCode);
+
+		uint16_t rv = Native::HLock(theHandle);
+
+		if (resultCode) memoryWriteWord(rv, resultCode);
+		return rv;
+	}
+
+	uint16_t TempHUnlock(void)
+	{
+		// PROCEDURE TempHUnlock (theHandle: Handle; VAR resultCode: OSErr);	
+		uint32_t theHandle;
+		uint32_t resultCode;
+
+		StackFrame<8>(theHandle, resultCode);
+
+		Log("     TempHUnlock(%08x, %08x)\n", theHandle, resultCode);
+
+		uint16_t rv = Native::HUnlock(theHandle);
+
+		if (resultCode) memoryWriteWord(rv, resultCode);
+		return rv;
+	}
+
+
+	uint16_t TempDisposeHandle(void)
+	{
+		// PROCEDURE TempDisposeHandle (theHandle: Handle; VAR resultCode: OSErr);	
+		uint32_t theHandle;
+		uint32_t resultCode;
+
+		StackFrame<8>(theHandle, resultCode);
+
+		Log("     TempDisposeHandle(%08x, %08x)\n", theHandle, resultCode);
+
+		uint16_t rv = Native::DisposeHandle(theHandle);
+
+		if (resultCode) memoryWriteWord(rv, resultCode);
+		return rv;
+	}
 }
diff --git a/toolbox/mm.h b/toolbox/mm.h
index ecb78be..9602f71 100644
--- a/toolbox/mm.h
+++ b/toolbox/mm.h
@@ -91,6 +91,11 @@ namespace MM
 
 	uint16_t TempMaxMem(void);
 	uint16_t TempFreeMem(void);
+	uint16_t TempNewHandle(void);
+
+	uint16_t TempHLock(void);
+	uint16_t TempHUnlock(void);
+	uint16_t TempDisposeHandle(void);
 }
 
 
diff --git a/toolbox/toolbox.cpp b/toolbox/toolbox.cpp
index 8208e37..ca2f0c1 100644
--- a/toolbox/toolbox.cpp
+++ b/toolbox/toolbox.cpp
@@ -68,6 +68,19 @@ namespace ToolBox {
 			case 0x0018:
 				return MM::TempFreeMem();
 
+			case 0x001d:
+				return MM::TempNewHandle();
+
+			case 0x001e:
+				return MM::TempHLock();
+
+			case 0x001f:
+				return MM::TempHUnlock();
+
+			case 0x0020:
+				return MM::TempDisposeHandle();
+
+
 			default:
 				fprintf(stderr, "OSDispatch: selector %04x not implemented\n", 
 					selector);