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Managed/unmanaged DLL challenge

Something to get your teeth in. :-)

I have a VC ++ managed .NET AAA.DLL that contains unmanaged code and MFC
7.0.
If I provide AAA.DLL with te msvcp70.dll, msvcr70.dll and mfc70.dll in the
same folder, then this can be used in other .NET code for example C#.

Now I have a pure c# generated .NET BBB.DLL that uses AAA.DLL.
This code works great used in C# projects and I have the AAA and BBB
functionality.

But here gets the big problem.
I have a conventional C++ with MFC 7.0 CCC.DLL and I want to use BBB.DLL.
It compiles, it links, but when run (called from a different exe, using
Loadlibrary & Co) and use one of the classes (just creating it) then it
complains that it does not find BBB.DLL of one of its components

The error message I get:
--- An unhandled exception of type 'System.IO.FileNotFoundException'
occurred in Unknown Module.
--- Additional information: File or assembly name SkyscanNETBase, or one of
its dependencies, was not found.

I have put all dll's in teh release folder, the debug folder, the project
folder even the Windows folders, but the error persists.
Any tips to find the cause? Last time I got an error like this was because
the mfc dll's must be in the same folder as the .NET dll that uses it. No
subfolder like .NET could use.

Thanks


Nov 17 '05 #1
0 1432

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