Windows XP Operating Systems Save
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LPRng Print Spooler Save
The LPRng software is an enhanced, extended, and portable implementation of the Berkeley LPR print spooler functionality. The source software compiles and runs on a wide variety of UNIX systems, and is compatible with other print spoolers and network printers that use the LPR interface and meet RFC1179 requirements.
http://www.lprng.com/   

Mtools Save
A collection of utilities to access MS-DOS disks from Unix without mounting them. Supports Win'95 style long file names, OS/2 Xdf disks and 2m disks. With source code.
http://mtools.linux.lu/   

Squid Internet Object Cache Save
Full-featured web proxy cache designed to run on Unix systems, free open-source software.
http://squid.nlanr.net/Squid/   

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