Connectix Releases Free RAM Doubler 9 Update -- Perhaps the most essential utility that fell prey to compatibility problems with the release of Mac OS 9 was Connectix's RAM Doubler 8, which replaces Apple's built-in virtual memory scheme with alternative methods of increasing the amount of memory available to applications. It does this by first reclaiming unused memory from other applications, then by compressing memory in use so it takes less space, and finally by swapping the contents of memory out to disk. (See "Free RAM Doubler 8 Update" in TidBITS-439 and "RAM Doubler 2" TidBITS-351 for more details.) Connectix has finally released a free update to RAM Doubler 9 that adds no new features but makes RAM Doubler compatible with Mac OS 9. If you've been missing RAM Doubler since upgrading to Mac OS 9, it's well worth downloading. Unfortunately, Connectix also stated that it has no plans to update the popular SpeedDoubler 8 or Surf Express Deluxe for Mac OS 9. [ACE]
Mac OS X Zip Expanding Utility
Firefox (and possibly other applications) may ask you what you want to do with .zip archives that you download from the Internet. If you want to expand them with Mac OS X (rather than StuffIt Expander), you may be unsure of which application actually does the job. You're looking for Archive Utility (in Leopard and later) or BOMArchiveHelper (in Tiger). In either case, the application is stored in Hard Drive/System/Library/Core Services/. Don't move it from there, though, or you'll confuse matters.