UpFront 2.00 32 bit is compatible with:

Windows 95
Windows 98
Windows NT
Wndows 2000
Windows XP

UpFront 1.90 16 bit is basically compatible with:

Windows 95
Windows 98
Windows NT
Wndows 2000
Windows XP

However some low level functions such as screen dumps which rely on the function of 16bit printer drivers are no longer supported.

All new purchases of UpFront should be 2.00 32bit.