Paradox - all versions from early DOS-versions can run on all modern Pentiums. Remember only that the earlier versions only can work within 16-MB environment, so you have to load paradox with the parameter -extk 16000 or less.

This question/problem has been asked and replied to numerous times on all Paradox newsgroups.

Paradox works much faster if you avoid using traffic on the net in calculations, nesting and so on - of all kinds. The bad thing is really to do a large scan - replace in a text-document or a table - on the net (NT or what so ever). The Supervisor will kills you if he find you.

This matter of course is important for all kinds of jobs. Don't do it in Lotus or Microsoft Office either.