All our products are designed for and fully compliant with Windows NT 4, Windows 2000, and Windows XP in their current version. If you own an earlier version of one of O&O's products, please check our update notes on the product pages on how to receive the new version.

Product	Windows
	95/98/ME	NT 4*	2000	XP	2003	Vista
System performance
O&O Defrag 11 Professional Edition	no	no	only pro.	all	only pro.	all
O&O CleverCache 6 Professional Edition	no	only wks.	only pro.	all	only pro.	all
Data Security
O&O DiskImage 3 Professional Edition	no	no	only pro.	all	no	all
O&O DiskImage 3 Express Edition	no	no	only pro.	all	no	all
O&O DiskImage 3 Workstation Edition	no	no	all	all	no	all
O&O SafeErase 3	no	no	all	all	all	all
O&O DriveLED 2	no	all	all	all	all	no
Data recovery
O&O DiskRecovery 4	no	all	all	all	all	all
O&O FormatRecovery 4	no	no	all	all	all	all
O&O MediaRecovery 4	no	all	all	all	all	all
O&O UnErase 4	no	all	all	all	all	all
O&O RescueBox 4	all**	all	all	all	all	all
Administration
O&O Enterprise Management Console 2	no	no	all	all	all	all
O&O DiskStat 1 Professional Edition	no	no	only pro.	all	no	all