There are ways of running 2 operating systems on one PC, usually on a separate internal hard drive. You need a PC expert for this!
Terry
Yes, I have such a configuration.
See my screen snap.
Before I installed Vista on the D: drive, I had XP on that drive.
You can see from the snap that I have W7 (64) as the default OS, with the ability to select Vista set to 10 seconds that is offered before windows boots up.
I get a DOS type screen to select the D drive with Vista.
I couldn't explain the steps on how to do this. The man that built my PC did this for me.
I am certain there are quite a few persons on here advanced in Windows configuring that could probably walk you through this.
Fred
PS I just had a look on line for drivers in case I got lucky. I haven't gotten lucky in a long time though.
I see there are no drivers for W7, but I also see that the updated drivers for that printer are dated 2001......
Maybe it's time to trade in the 7500 for one with power steering and power brakes?
Fred