Hi,
Using VS2008 C++ mixing managed and unmanaged (static C++ libs) code.
Now, when running my application I get an exception about some code that was not created on the managed heap; basically the exception gets generated when something calls:
CrtIsValidHeapPointer(...)

Ok, in some other forum thread, a solution was posted: "Add __DllMainCRTStartup@12" under linker options "Force Symbols Reference".
This all works fine when the application is compiled for win32, but when compiled for amd64 (x64), then I get a linker error:
-------------------
Linking...
1>LINK : error LNK2001: unresolved external symbol __DllMainCRTStartup@12
-------------------

Any ideas ?
Thanks.
God bless you,

Saul Rodriguez

In 64-bit compiles, exported functions are not decorated. Use __DllMainCRTStartup (two underscores). Please use this forum only to ask questions about the .NET framework.

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Hans Passant.

In 64-bit compiles, exported functions are not decorated. Use __DllMainCRTStartup (two underscores). Please use this forum only to ask questions about the .NET framework.

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Hans Passant.

I still get the following linker error with x64
----
1>------ Build started: Project: xxxx, Configuration: Release x64 ------
1>Linking...
1>LINK : error LNK2001: unresolved external symbol __DllMainCRTStartup
----

Although I am using dynamic c++ libraries (/MD).

Thanks in advance.

Try using "_DllMainCRTStartup" in the Input section of your Linker instead. There's a function with that name that should be in your include libraries. Worked for me...

In Linker->Input->Force Symbols Reference:_DllMainCRTStartup

...one underscore, and that works for me.

Blessings,

Saul