I’m creating an IE extension in C# using visual studio 2010. How do I go about debugging the extension whilst running it in Internet Explorer?
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I’m creating an IE extension in C# using visual studio 2010. How do I go about debugging the extension whilst running it in Internet Explorer?
Project + Properties, Debug tab. Select “Start external program”, set it to c:\program files\internet explorer\iexplore.exe. You probably want to set the “Command line arguments” to the path of an HTML file that exercises your BHO.
Set a breakpoint on the code you want to debug. Internet Explorer will start running when you press F5. You’ll see the breakpoint turning hollow, indicating that the breakpoint is not armed. As soon as IE loads your DLL, visible in the Output window, it will turn into a solid red. And the debugger automatically breaks when IE calls your code.
There is a registration step. Do always avoid using gacutil.exe, it does nothing but pollute the GAC on your machine. Always favor the “Register for COM interop” option in the IDE, the equivalent of running Regasm.exe with the /codebase option. No need for the GAC that way. Either way, VS must be running elevated to make these machine config changes, start it by right-clicking the shortcut and selecting “Run as Administrator”.