hi, i''m trying to get some sfx working on my game and when I compile it it gives me these error: ../../projects/main.o(.text+0x570):main.cpp: undefined reference to `CoInitialize@4'' ../../projects/main.o(.text+0x6031):main.cpp: undefined reference to `CoUninitialize@0'' ../../projects/main.o(.text+0x61ce):main.cpp: undefined reference to `mmioDescend@16'' ../../projects/main.o(.text+0x6222):main.cpp: undefined reference to `mmioDescend@16'' ../../projects/main.o(.text+0x6256):main.cpp: undefined reference to `mmioRead@12'' ../../projects/main.o(.text+0x62dc):main.cpp: undefined reference to `mmioRead@12'' ../../projects/main.o(.text+0x635a):main.cpp: undefined reference to `mmioRead@12'' ../../projects/main.o(.text+0x639a):main.cpp: undefined reference to `mmioAscend@12'' ../../projects/main.o(.text+0x63f4):main.cpp: undefined reference to `mmioOpenA@12'' ../../projects/main.o(.text+0x643c):main.cpp: undefined reference to `mmioClose@8'' ../../projects/main.o(.text+0x647c):main.cpp: undefined reference to `mmioSeek@12'' ../../projects/main.o(.text+0x64ae):main.cpp: undefined reference to `mmioDescend@16'' ../../projects/main.o(.text+0x64ea):main.cpp: undefined reference to `mmioGetInfo@12'' ../../projects/main.o(.text+0x655a):main.cpp: undefined reference to `mmioAdvance@12'' ../../projects/main.o(.text+0x65a6):main.cpp: undefined reference to `mmioSetInfo@12'' ../../projects/main.o(.text+0x6724):main.cpp: undefined reference to `mmioClose@8'' the dsound code is from the playsound example in the dx7 sdk.

I tried it but I still get this error:
../../projects/main.o(.text+0x570):main.cpp: undefined reference to `CoInitialize@4''
../../projects/main.o(.text+0x6031):main.cpp: undefined reference to `CoUninitialize@0''

open msdn.
type coinitialize into search box/index.
go to man page for coinitialize.
read the required input library on the bottom of the page.
add that library to your project.

It finally compiled! thx everyone.