Connectix has released Virtual PC 5.0.2, a free update to the company’s PC emulation software for both Mac OS 9 and Mac OS X (see "Virtual PC Adds Features, Mac OS X Compatibility" in TidBITS 610). Chief among the improvements are a wide variety of performance enhancements aimed at addressing complaints about glacial performance under Mac OS X. Other areas fixed include PPTP virtual private networks when using Shared Networking, better diagnostics, printing to Canon printers, better serial port emulation, enhanced scripting support, and crashes when plugging or unplugging USB devices. Be sure to read the release notes and the Vital Information for Updates 5.0.2 document for details. The update is a 10.5 MB download.