I've been wondering if anyone has ever seen software that works kind of like Adobe Acrobat but instead of creating a .PDF it just sends the print job to whatever is the default printer is on that machine?
I know it sounds weird but here's why I want to do this.

I recently came across an older Toshiba laser printer/ photocopier that doesn't have Vista PCL6 drivers and I was thinking there must be a way around it.

The printer is connected to an XP machine that's on the network and everyone in the building uses it except for the one Vista machine because of the lack of drivers.

If I could install something like I described on the top of this post on the XP machine and share it on the network then the Vista machine could send the print job to this "fake printer" and then it would be sent the the default printer by the XP machine.

That would be extremely useful but I haven't found anything simple like that yet.
Maybe it can be done with GhostScript but it seems like a mess.