Asm syntax highlighting not working in Visual Studio 2015


I’ve installed AsmDude through the Visual Studio marketplace. I restarted my computer and tried editing a .asm file, but the syntax highlighting is not showing.

Text Editor

I’ve gone to Tools -> Options -> AsmDude and it says that sytax highlighting is enabled.

AsmDude settings

I also can’t get Visual Studio’s built in MASM syntax highlighting to work by following the instructions on how to do that.

Why can’t I get any syntax highlighting working?


Goto Tools > Options > TextEditor > FileExtensions. You may have associated the extension .asm to an editor. If you have done that AsmDude can’t take control over files with the .asm extension. For the same question (and answer) see here.

Answered By – HJLebbink

Answer Checked By – Timothy Miller (AngularFixing Admin)

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