When doing Boot Camp you will need to re-partition your drive. Not 100% sure if this can be done on the fly. To be on the safe side I would clone your current drive, partitioning it ( I suggest at least 20GB for Windows XP sp3) then if things do go awry you can re-clone your system back to the mac partition, then install a copy of XP/ Vista onto the windows partition. Look into WINE which may allow you to run that particular program without having to partition, install etc and all that other stuff. WINE stands for windows is not needed. Only works with Intel based machines. There are a couple of man stream programs VMFusion and Parallels which behave more like Virtual PC, Cost is about $80 and I think with Parallels 4 you can do an on the fly partition or assign hard drive space. Also Wayne D. mentioned a Sun Microsystems virtual machine a few posts back as well which could work. The main disadvantage to Boot Camp is that you have to shut down the Mac and then reboot as a windows machine. The advantage is that it runs 100% native so there is no speed hit. That may not be too important for you. Depends on your needs. My daughter runs AutoCad using Parallels and for her it is 'quick' enough as her need for speed isn't that great. The other programs let you run both systems at the same time, which if you have used VPC you would likely prefer. Martin On Mar 9, 2009, at 12:54 PM, Dean Danis wrote: > Intel Macs can run Windows natively with out the need for a program > like Virtual PC. Boot Camp allows you to boot into either Mac OS X > or Windows on a separate partition, but not both at the same time. > Programs such as Parallels, or VMware allow you launch Windows > while in your Mac environment. > >> >> I have Virtual PC for Mac 6.1 which I used on my G4 Powerbook to >> run a PC >> program that wasn¹t available in a mac version. Virtual PC was >> discontinued >> for mac in 2006 and was not ported to Intel-based machines. >> Does my current G4 tower have the capacity to run it? >> >> Do the new macs running windows dispense with the need for it? >> --- MUGLO information at <http://www.freewebs.com/muglo> Manage your account options at <//www.freelists.org/cgi-bin/lsg2.cgi>