UseDll with C++ run-time DLLs

[Matthias1967]

For checking the license key, I need to call a function from a product DLL which needs the Visual C++ Run-time MSVCP60.DLL, which in turn needs the C Run-time MSVCRT.DLL.

All those DLLs will be present in the correct versions after the installation; however, in order to use them during the setup, I add them to the "Setup files" list in the IDE and call UseDll from Installscript in what I think the correct order:

UseDll(SUPPORTDIR^"msvcrt.dll");
UseDll(SUPPORTDIR^"msvcp60.dll");
UseDll(SUPPORTDIR^"Mydll.dll");

However, Setup complains that msvcp60.dll could not be loaded and exits then.

All those DLLs are present in the SUPPORTDIR; the Dependency Walker does not show any missing functions.

Thanks for any ideas

Matthias

[RobertDickau]

Perhaps try calling ChangeDirectory(SUPPORTDIR) before calling UseDLL?

[Matthias1967]

Thanks for your input, Robert.

However, it doesn't work. I have added a ChangeDirectory(SUPPORTDIR) before the LoadDll calls, but LoadDll(SUPPORTDIR^"msvcp60.dll") still returns a -1.

Regards,

Matthias

[RobertDickau]

Does Is(FILE_EXISTS, SUPPORTDIR ^ "lib.dll") return true?

[Matthias1967]

Is(FILE_EXISTS,SUPPORTDIR^"lib.dll") returns true for all DLLs I try to use.

However, UseDll only works for msvcrt.dll and reutrns -1 for msvcp60.dll.

Regards

Matthias