VPC 5 has a new vitual motherboard & bios - they claim it runs much faster than 4.x - so far I agree.

You can migrate from 4.3 to 5 but the OS will want to reconfigure the hardware (XP may want you to reregister <grin).

Cheers

Doug

(PS I wouldn't use it in a normal production environment - only ever use VPC to test out installs & the various features prior to deciding a final install. But one app I run under VPC that alone makes it worth its weight in gold, is that I still need to compile MF Cobol programs & that requires a printer port dongle & also I can only get the ver of MF Cobol I have running under Win NT - it all works well under VPC.)