To summarize: There is a difference between simply providing DLL's and emulating instructions for software to run on. Details: Yes, it provides DLL's natively built for various OS's. The problem, as has been explained earlier, is that it is NOT an emulator and does not emulate the x86 instructions needed to run x86 software to MAKE those Windows calls. You can ONLY make WINE run on x86 hardware (reasonably fast, depending) or on EMULATED x86 hardware (always, ALWAYS slow!).