My older version of Intuit Quickbooks 2002 Basic was working fine till I installed a free copy of Quickbooks simple start, then un-installed it about a week ago. Now it wont open, just flashes on and disappears. Trying to re-install from disc I get the message that "setup cannot find C:\windows\COMMAND.COM and cannot continue".
The old version was installed into my new computer about 2 years ago when it was running Vista 64 bit, before I up-graded to Widows7. No problems then.