SpamAssassin has been ported for Windows by JAM Software. In combination with an MTA (e.g. Hamster or MS Exchange) it's a very powerful anti-spam solution.
License:Freeware, $0 to buy Size:7.87 MBLatest Update:2011-02-15
modusGate provides your organization with the tools to effectively counter security threats such as spam, viruses, fraud, phishing, botnets and other unauthorized communication.
License:Shareware, $1500 to buy Size:144.87 MBLatest Update:2010-06-15
SpyShelter anti keylogger uses special algorithms to protect you and your data against: spy softwares that are used to steal or reveal your data to other parties, extremely dangerous new keyloggers that steal information you send via your computer
License:Freeware, $0 to buy Size:4.24 MBLatest Update:2010-06-19
The best you can buy to protect your home computer. Free 30 DAYs Trial Avant4u Security Suite Spamblocker-AnonymousSurfing-AntiSpy-Firewall-MyPrivacy-PopUpSlasher-PasswordOrganizer
License:Commercial, $15 to buy Size:21.49 MBLatest Update:2006-05-20
I personally guarantee SpyZooka will remove 100% of your spyware, adware, hijackers, keyloggers, unwanted toolbars, dialers, trojan horses and malware or I will give you a free update in 24 hours (or less) that will...Plus prevent future infection!
License:Shareware, $29.95 to buy Size:2.48 MBLatest Update:2009-01-29
Clean your PC history & protect your privacy - with Instant Cleaner Pro, FREE. Clears Internet browser & Windows history - all with just a single click. Download NOW!
License:Shareware, $47 to buy Size:2.08 MBLatest Update:2010-02-01
SpyShelter uses special algorithms to protect you and your data against: spy softwares that are used to steal or reveal your data to other parties, extremely dangerous and custom-made keyloggers that steal information you send via your computer
License:Demo, $39 to buy Size:3.65 MBLatest Update:2009-10-02
IObit Malware Fighter detects the most complex and deepest malware, like spyware, adware, trojans, keyloggers, bots, worms, and hijackers, in a fast and efficient way.
License:Freeware, $0 to buy Size:24.95 MBLatest Update:2014-06-27
A malware removal tool with free system diagnostic utility. The user friendly interface with a swift scan, perfect removal procedures and absolutely free Diagnose and Fix utility; makes it one of the best anti-spyware tools.
License:Shareware, $29.95 to buy Size:3.91 MBLatest Update:2009-06-10
CleanMail is a complete Anti-Spam/Anti-Virus solution (SMTP/POP3) that works with any mail server like Microsoft Exchange, Microsoft Small Business Server (SBS), Lotus Notes/Domino or IMail.
License:Freeware, $0 to buy Size:20.21 MBLatest Update:2017-11-02
CleanMail is a complete SMTP/POP3 email security solution (Anti-Spam/Anti-Virus) that works with any mail server like Microsoft Exchange 2003/2007/2010, Microsoft Small Business Server (SBS) 2003/2008, Lotus Notes/Domino or IMail.
License:Shareware, $279 to buy Size:20.21 MBLatest Update:2015-10-09
Free, easy tool to choose programs to allow to run on Windows startup. You can specify approved applications, close unwanted or find more about unknown. Startup Guard catches new startup records, so you can remove a virus or spyware! Includes Undo.
License:Freeware, $0 to buy Size:1.44 MBLatest Update:2013-03-09
SPAMfighter Mail Gateway, is the easy-to-use anti-spam solution for Microsoft Windows Servers. SPAMfighter Mail Gateway delivers instant spam protection with no configuration/maintenance to help businesses get rid of spam.
License:Shareware, $75 to buy Size:10.64 MBLatest Update:2013-05-07