STEP 7 Professional will run in:
MS Windows 95 OSR2 (95b) 95c is recommended
MS Windows 98SE
MS Windows Millennium Edition
MS Windows NT 4.0 Workstation SP 6a is required
MS Windows 2000 Professional SP 1 is required
MS Windows XP Professional SP 1 is recommended


STEP 7 Professional will not run in:
MS Windows 3.1
MS Windows for Workgroups 3.11
MS Windows XP Home