[C++-sig] issues with loading the boost_python dll on different computers

Dear all, I installed and used boost (1.50.0) to build a python extension on my Windows 7 / 32 Bit. Everything worked fine. Now I tried the extension module on other Computers with Windows 7 and Windows XP and the same Python version and it gave me an error concerning the DLL: ** ImportError : DLL load failed: This application has failed to start because the application configuration is incorrect. Reinstalling the application may fix this problem. ** Would anyone have a hint on were this problem could come from. I am totally clueless. Thanks a lot, Ronny