[Mingw-w64-public] Building a library for use under Visual Studio 2008

Hello,

I use MingGW64 for my development work on Windows 7 64 bit. 
Essentially, I build libraries via "ar rvs libfoo.a <*.o files>" and 
test the libraries by linking to a test harness that has main().

I use -std=c++0x and -static-libgcc -static-libstdc++ flags.

Can my lib*.a files be used by others who work inside Visual Studio 2008 
(which does not support the latest C++ standard library)?  I can make 
sure that the header files needed by others do not use the newer C++ 
features.

If my lib*.a files cannot be used in a Visual Studio 2008 project, what 
would I need to do to build a library that can be used by others who 
work inside Visual Studio 2008?

While I am familiar with generating and using lib*.a files, I have no 
clue about dll files.

Thanks,

--Suresh