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1. CURRENT DIRECTORY IS LOST WHEN EXIT MIDNIGHT COMMANDER MAC UPGRADE
2. CURRENT DIRECTORY IS LOST WHEN EXIT MIDNIGHT COMMANDER MAC SOFTWARE
3. CURRENT DIRECTORY IS LOST WHEN EXIT MIDNIGHT COMMANDER MAC CODE

CURRENT DIRECTORY IS LOST WHEN EXIT MIDNIGHT COMMANDER MAC CODE

There are details of this on Wikipedia but it's been sanitised by MS PR so it merely mentions patent infringement, rather than the direct code theft involved. This was the last-ever version of MS-DOS, and thus DOS 6 has the dubious distinction of being the most-patched release in history. Then MS rewrote the offending code and released MS-DOS 6.22, another free update, replacing the infringing "DoubleSpace" with "DriveSpace" - basically the same tool but with different compression/decompression routines. Then, when it lost the STAC lawsuit, it released another update, MS-DOS 6.21, which simply removed disk compression altogether. (Note, at this time, product updates, service packs, etc. MS-DOS 6 was badly buggy anyway and MS had to release a free update, MS-DOS 6.2.

CURRENT DIRECTORY IS LOST WHEN EXIT MIDNIGHT COMMANDER MAC SOFTWARE

Central Point Software was bought out by Symantec, like Quarterdeck and Norton and others. It wasn't enough and STAC ended up going broke. ReachOut mainly worked by direct-dial modem-to-modem comms - useful, but expensive, as each machine to be controlled needs a modem, a telephone line and its own phone number. Sadly, this was long before ubiquitous Internet connectivity, even by dial-up modem. It used the money wisely, to diversify the company out of disk compression by acquisition, buying vendors of remote-control software (ReachOut) and enterprise backup (Replica). So Microsoft just stole the code and used it anyway. MS tried similar tactics on STAC in the hope of bundling the Stacker disk-compression tool with MS-DOS 6. In actual fact, people got by with the freebie versions and CP's sales of standalone products _and_ upgrades both stagnated.

CURRENT DIRECTORY IS LOST WHEN EXIT MIDNIGHT COMMANDER MAC UPGRADE

Microsoft promised CP that CP would make money from DOS 6 customers wishing to upgrade to the full versions. Cut-down versions of PC Tools Backup and the separate Central Point Antivirus were bundled with MS-DOS 6. What doomed Central Point software is that it did a licensing deal with Microsoft. Unlike rival extended formats, if you tried to DIR the disk from DOS, you got a warning message: It used an extended disk format, squeezing about 1.6 MB onto an HD 3½" floppy, and compressed data on the fly, so many megabytes of software or data could be squeezed onto the minimum number of floppies. The PC Tools backup/restore tool was also superb and extremely fast. It had one of the fastest floppy formatters around, and just about the fastest DOS disk-defragmenter I ever saw, nearly an order of magnitude quicker than Norton's. It was very useful even in the later DOS era it was a standard part of my travelling tech toolkit. Indeed, up to the point that the name was usurped by some unrelated software. CentralPoint PC Tools seems little remembered nowadays.