[sdiy] Electronics Workbench software???

[Grant Richter]

Back in the 90's I purchased "Electronics Workbench" software. Subsequent
upgrades got me to version 5.0.3

Have since lost track of box, manuals disks etc. and company is no longer in
business?

Hard drive crash forced Windows reinstall, and wiped out some kind of
authorization code. Their protection scheme didn't keep them in business...

Anyone here know what happened to EWB and if you can still buy it? Or what
is revision history or compatibility? Looked on e-Bay, no 5.0, can I load
5.0 files in earlier versions?

I have about 100 little utility circuit for calculating voltage dividers,
op-amp bandwidth, FET bias and such (also Buchla simulations like 266, 291,
292), now useless.

Any help appreciated.