VAG-COM-FAQ-1.7
From Ross-Tech Wiki
1.7 Can I use VAG-COM on a desk-top computer?
Yes, but you will probably need an extension cord for your interface. We usually stock serial extension cables in 15' (3m) and 25' (7.5m) lengths. See our Order Form for pricing. Note: We have tested many Active USB extensions and have found one that works. You can order the 16-ft Active USB Extension from our Store. We do not sell or support any other brands or models of USB extensions, if you have problems when using one, the first thing we're going to tell you is to eliminate the extension.