C++ ATL DLL Addin for Windows Mail is blocked by Vista's DEP
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Hello Friends, I am using Windows Vista and I am builing an c++ ATL DLL in Visual C++ 6.0, which is an addin DLL for Windows Mail. (Outlook Express) When I run my Windows Mail, Vista's DEP (Data Execution Prevention) feature blocks it, and prompts that it blocked for security purpose as some other program tried to use windows mail data. But I have to hook into Windows Mail as have to put an addin to customize its GUI. I tried to turn DEP off for Windows Mail, but it didnt allow me (even in Full Admin Account). Also I turned DEP off for my exe (which loads my addin DLL, which further hooks into Windows Mail), but despite that Windows Mail is blocked. Also, when I build the project in Visual Studio 2005, it runs very well. (And I have not made any change in the project settings or code) It seems, VC 6 uses older compilers and VS 2005 uses latest ones so are compatible with Vista! But I have to use VC 6 only as it's my project's requirement! Please Help! Thanks a lot !!
dolly, N,IN
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Hello Friends, I am using Windows Vista and I am builing an c++ ATL DLL in Visual C++ 6.0, which is an addin DLL for Windows Mail. (Outlook Express) When I run my Windows Mail, Vista's DEP (Data Execution Prevention) feature blocks it, and prompts that it blocked for security purpose as some other program tried to use windows mail data. But I have to hook into Windows Mail as have to put an addin to customize its GUI. I tried to turn DEP off for Windows Mail, but it didnt allow me (even in Full Admin Account). Also I turned DEP off for my exe (which loads my addin DLL, which further hooks into Windows Mail), but despite that Windows Mail is blocked. Also, when I build the project in Visual Studio 2005, it runs very well. (And I have not made any change in the project settings or code) It seems, VC 6 uses older compilers and VS 2005 uses latest ones so are compatible with Vista! But I have to use VC 6 only as it's my project's requirement! Please Help! Thanks a lot !!
dolly, N,IN
The ATL in VC++ 7.1 and earlier makes use of thunk code that requires executing code from a data block. The DEP feature prevents that. Here is a KB article I wrote on the subject: Applications Using Older ATL Components May Experience Conflicts With DEP: http://support.microsoft.com/kb/948468
Scot Brennecke Software Developer VC++ MVP