Hi,
I have a VB.NET application that runs from a Sub Main and then loads some Windows Forms. I need to show a TaskDialog in some cases before forms are loaded, but doing so I get an EntryPointNotFoundException on TaskDialog function. I read that the problem is due to the wrong comctl32.dll version loaded.

I already have Application.EnableVisualStyles() at the beginning of Sub Main, and I noticed that if a Form is loaded before TaskDialog is invoked it is shown correctly, but if it is invoked before loading any form, the EntryPointNotFoundExceptionis thrown.

Is there a neat way to force the program to load comctl32.dll v6 from the beginning?

Your program is already loading comctl32.dll version 6. It however comes from the side-by-side cache. Your P/Invoke declaration will load the wrong one, version 5 from c:\windows\system32. Solving this problem is very awkward, you will have to get the loaded DLL handle and use GetProcAddress().

Don't go there. Download the Vista Bridge, it support Task dialogs.

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Hans Passant.

Your program is already loading comctl32.dll version 6. It however comes from the side-by-side cache. Your P/Invoke declaration will load the wrong one, version 5 from c:\windows\system32. Solving this problem is very awkward, you will have to get the loaded DLL handle and use GetProcAddress().

Don't go there. Download the Vista Bridge, it support Task dialogs.

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Hans Passant.