Hi, I am using wine-20030911, on Redhat 9. This is a pure-wine, no-windows installation. I'm new to wine but am trying to run a portion of a program called OPNET, which is a huge simulation tool for network modeling. Anyhow, I run the core executable with a command-line parameter specifying my working directory. Here's what I get: % wine -- op_runsim.exe -opnet_user_home C:\\ fixme:console:SetConsoleCtrlHandler (0x100f4e92,1) - no error checking or testing yet fixme:console:SetConsoleCtrlHandler (0x77c331db,1) - no error checking or testing yet fixme:advapi:GetFileSecurityA ("C:\\") : stub fixme:advapi:GetFileSecurityA ("C:\\") : stub fixme:ntdll:RtlImpersonateSelf (00000002), stub fixme:advapi:RevertToSelf (), stub fixme:seh:EXC_RtlRaiseException call to unimplemented function advapi32.dll.MapGenericMask wine: Unhandled exception (thread 0009), starting debugger... WineDbg starting on pid 8 Loaded debug information from ELF 'wine' ((nil)) Breakpoint 1 at 0x4000bd00 (_end+0x400a4f8) Loaded debug information from ELF '/usr/local/lib/libntdll.dll.so' (0x40014000) Loaded debug information from ELF '/usr/local/lib/libwine.so.1' (0x400d6000) ...etc... It would appear that advapi32.dll is the source of the problems. I tried using that DLL file from windows installations (set the config file to native), but that just caused more problems. So, is MapGenericMask the cause of the trouble? Am I out of luck as long as that function is not yet implemented, or is there some way to work around it? I don't know what that function does, I'm guessing it is something with security or permissions in NT, 2000, or XP. Thanks for any help... Tony