Hey guys, i know this post is old, but i'm also having the same problem. I'm trying to compile MASM 6.1.5 programs in wine, and using ml.exe compiles and links everything perfectly and outputs a .exe file with no complaints. Then, when i try and run the program it give me an error like Code: fixme:module:__wine_load_dos_exe DOS executables not supported on this platform winevdm: can't exec 'Z:\home\trusktr\projects\school\fall2010\cisp310_assembly\random2\main.exe': invalid program file If i run the .EXE file in DosBox, then it works just fine. How can i get these 16bit apps that I'm making working in Wine?