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edited June 2020 in Product Comments
Microsoft Multiplan was an early 8-bit spreadsheet application for CP/M and MS-DOS with ports to numerous other platforms in the early 80s. Initially it competed against VisiCalc and later Lotus 1-2-3. A companion product, Microsoft Chart, provided graphing support. Multiplan was never ported to Windows, where it was replaced with Microsoft Excel. Excel also replaced Multiplan on the Macintosh platform.
I have Microsoft Multiplan 4.20 in my collection this version in French and have Copy Protection.
Any chance you could dump it with a kryoflux or SuperCard Pro? Or at least try running it through imagedisk/teledisk/anadisk/copyIIpc+snatchit so we could get some idea of what kind of protection it is using?
I do not how dump with kryoflux or SuperCard Pro. You can teach how to dump it.
Kryoflux and SCP are hardware devices, so if you don't have one of those you won't be able to use that method. There is a group of people working on a similar project called greaseweazle that has some similar functionality for a less money, and more open standards. I think those guys are more focused on Amiga software floppies, but the ideas are all the same. https://github.com/keirf/Greaseweazle/wiki
One should keep in mind, that some versions existed as localisations for some specific markets only. Good example - Japanese/Korean/Chinese versions of Microsoft WinWord 5.0 or Excel 3.1. So there's a big probability that the last English version of Multiplan was indeed 4.01.
Yes version 4.0 is now verified with same SHA1.
But version 4.01 needs verification, it seems to be only 3ea disks.
Seems like only MP.EXE was updated comparing to 4.01