Credential manager for Vista/Windows 7

Question

I have Credential manager implemented in VC++ which captures credentials during login process. It works well in XP/Vista/Windows 7 32 bit env. But is not working in 64 bit. Any idea ? Thanks in advance for any help

Answer 1

If you want your DLL to be loaded by a 64-bit process, your DLL has to be compiled for 64 bits.

If you want your DLL to be loaded by a 32-bit process, your DLL has to be compiled for 32 bits. This is true on both 64-bit Windows systems and 32-bit Windows systems.

John gave you a useful link, even though John's wording is wrong. An application (exe) which is built for 32 bits will run in 64 bit Windows, but it can only load 32-bit DLLs.

Answer 2

Did you build for a 64-bit platform in Visual Studio?

A Visual C++ application which is build for a 32-bit environment won't work directly in a 64 bit environment. And although applications will work using the WOW64 compatibility layer, DLLs must be 64-bit if they are to be loaded by a 64-bit operating system.

Since that is indeed the case here, you need to build your project for a 64-bit platform (Visual Studio 2005 and later have a 64-bit compiler).

See the link http://msdn.microsoft.com/en-us/library/ms185328.aspx for more details.