The game can work under Windows XP but he setup program always fails under Windows XP. To bypass the setup program use a dual boot or
Copy all files in the INSTALL directory and the AUD1 directory to C:\C&C.
Then create a text file called CONQUER.INI in this directory with the following lines:

[Sound]
Name=116
Card=e000
Port=220
IRQ=5
DMA=1
BitsPerSample=8
Channels=0
Reverse=0
Speed=0
Subtitles=0

[Language]
Language=ENG

It is also possible to use 16 bits sound (SoundBlaster ASP/16/AWE32) with VDMSound. Use then the following lines:

[Sound]
Name=119
Card=e017
Port=220
IRQ=5
DMA=5
BitsPerSample=16
Channels=0
Reverse=0
Speed=0
Subtitles=0