You've come to the right place for file, system, security, and internet tools and utilities for both PCs and larger scale systems. There's many small, useful utilities that you can quickly download. No forms to fill, no spyware, adware, nags, and no time-expiry! Browse the Windows, Unix/Linux, or DOS software.
PC-Tools.Net is operated by Jem Berkes and is not affiliated with pctools .com in any way. I don't know what they do, and I don't care.
grepcidr 2.0 - unix, GNU GPL, 2014-05-26
grepcidr is a popular IP address and CIDR network filter, useful for log file analysis and network security. This version adds IPv6 support, speed improvement (no more regex), stricter IP matching, and various bug fixes and enhancements.
JBMail Plus 3.3 beta3a - Windows, freeware, 2013-05-27
SpamTestBuddy 0.95 - unix, open source, 2007-09-27
SpamTestBuddy is a simple, light-weight, multiple-input spam scoring tool. It is standalone and can be used with simple procmail rules without root access or daemons. Features built-in support for simple DNS checks including DNSBL (DNS-based blocklist) queries, and can scan headers from filters such as SpamProbe, QSF, DSPAM that you already use. Use SpamTestBuddy to adjust the score from your statistical filter, to reduce both false positives and false negatives with the benefit of extra spam tests.
renattach 1.2.4 - unix, GNU GPL, 2006-10-24
New --loop option removes Delivered-To headers from the input message. This defends Postfix against a "mail forwarding loop" spam relay trick.
Jem writes software as a hobby. The great majority of the site content has been freeware and open source since the year 2000. The DOS freeware dates back even further, to 1997, when Jem was hacking assembler code for fun (many of the programs are written in pure x86 assembler).
Since then, Jem has produced hundreds of public software releases which have been downloaded several million times from this site. The free software written by Jem has also been included inside and distributed along with books, free software CDs, and other free software projects. The grepcidr tool, for instance, shows up in Linux and FreeBSD distributions.
This web site, which is the same as pc-utils.com, has been online since 1999.