The wrappers won work,they are unstable,they cause slowdowns and errors.Any other way how can I play in 3dfx mode?
You can get an add-on voodoo card (voodoo1 or voodoo2,but preferably voodoo2).There is a good chance that one of your friends will have an old add-on voodoo card that he wont use anymore,just borrow it if you can.If not,you can buy one,they are very cheap (around 5-10$) and available almost anywhere.Try to find a local seller,if that wont work you can use ebay.Install the voodoo card in your pc,connect it to your primary graphics card with the pass-through cable (the seller should give you one if you are buying the card),plug the monitor in the voodoo2 card,install the latest drivers (available for any OS,including WinXP,check here ) and you are ready to play Incubation in 3dfx mode.Note that Voodoo2 cards don’t run too well (or at all) on new pc’s (Pentium4 or older should be fine).You can find additional info about Voodoo2 cards here.