Executor (1996) 4 Virtualization DOS

Executor, from Abacus Research and Development, is a commercial DOS based Macintosh emulator. There were also versions for NextStep and Linux. Emulates a 68040 base Mac.

• 2.0

RAR (1999) 2 Archive DOS

A console utility to extract and create RAR files.

• 2.50

Stacker (1991) 3 Utility Archive DOS Windows

Stacker, from Stack Electronics, was a hard drive compression tool. It was wildly popular until Microsoft virtually eliminated the third party market for this by including their own drive compression tool with MS-DOS 6. and Expandz! Plus.

• 1.0 (DOS)
• 2.0 (DOS)
• 3.x (DOS)
• 4.0 (DOS)

Virtual PC (1996) 16 Virtualization MacOS Mac OS X

Virtual PC started off originally as an x86 emulator for PowerPC Macintosh to run MS-DOS and Microsoft Windows. Connectix, the company that made it, was purchased by Microsoft. Virtual PC was then retooled into a virtualization tool for x86 systems. Microsoft discontinued Virtual PC in favor of a server-oriented virtualization product called Hyper-V.

• 5.x
• 6.x
• 7.x