1.. Choose Start > Control Panel and double click Add hardware, then click Next.
2.. Click Yes, I have already connected the hardware and click Next.
3.. Select Audio Codecs in the list of installed hardware.
4.. If you did not have previously any audio codecs installed in the system, you should select Audio Codecs in the list of devices and click Next. This should install support for the needed sound compression schemes. Stop following this procedure at this point.
On the other hand, if you do have support for some audio codecs it is likely that you need to go on with the procedure below.
5.. Choose Add a new hardware device at the bottom of the list and click Next.
6.. Click Install the hardware that I manually select from a list (Advanced), and click Next.
7.. Select Sound, video and game controllers and click Next.
8.. Select (Standard system devices) and click Have Disk.
9.. Click Browse in the Install From Disk dialog box and open the folder C:\Windows\System32.
10.. You should see here mmdriver.inf. Select it and click Open.
11.. Click OK in the Install From Disk dialog box.
12.. If you see a warning about logo compatibility, just click Continue Anyway.
13.. Now you should finally see a list of audio codecs. Amongst the other items, you should find Microsoft ADPCM Audio Codec and IMA ADPCM Audio Codec. You need to install them one by one so select either of these and click Next. This should re-install the codec (you may need your Windows XP CD and might need to restart the computer before the codec works). Repeat the procedure for each codec for which you need support (for Four Winds, install the above mentioned two).
Herzlichen Dank an Jörg Ott aus microsoft.public.de.german.windowsxp.setup