Hi all,

Does anyone know if it is possible to build DLL on Linux platform and then use it on Windows side?

Source code would be written in C++.

Thanks.

For a native DLL/shared objects, you don't. Windows cannot run linux binaries (duh). You'd rebuild on windows.

For .NET, though, mono DLL's should technically run unmodified on windows.

Your answer is incorrect. Building dlls on linux has nothing to do with linux binaries.

Yes, it is possible, but sometimes it's tricky (and in some rare situations it's very difficult to make tools work). I did windows programming on linux machine.
You can use:
1) mingw-cross .
2) Wine + Microsoft Visual Studio compiler toolkit 2003. (Good luck finding this one. It's still on the web, but not on Microsoft Website).
3) Wine + mingw.

In my opinion, Using wine+windows compiler is easiest way.

All those utilities can be used in conjuction with scons or gnu make.
Search for mingw-cross, this should be enough to get started. Also expect that your program might not work through wine at all, and be ready to get unexpected problems during compilation (for example, running windows version mingw with mingw will may require native windows msvcrt.dll, due to the wine bug (which could be already fixed by now)).

Thanks for those, I will check that mingw-cross.

I don't want to run our program through wine or at Linux at all. I just want to be able to compile DLL files using Linux, real software which uses those DLL's is compiled on Windows and will also run on real Windows platform.

Do you think that's possible? And is mingw needed on Windows side then if I want to use those DLL's?

DLL's/shared objects are executable binaries.

True but the OP wants to build on Linux and deploy on Windows - this process is known as cross compilation and is perfectly feasible.