Hmm, it just works fine for me. But I do not have :\WPI, on my disc it is :\Install\WPI, :\Install\Programme and :\Install\Treiber so WPI is in the Install folder. If you want, you can download this archive and see my structure in there. But the explanations are german. P.S.: Sorry for not answering your PM, I had some problems with my Internet in the last days. I have tryed that way too (:\Install\WPI ) and it doesnt work for me. It works perfectly for me you surely didn't use the correct environment variables to invoke the files. What do you means with "you surely didn't use the correct environment variables to invoke the files"? Maybe you need to read this too: http://www.msfn.org/board/index.php?showto...mp;#entry553557