• Firewall Leak Tester
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• Microsoft TechNet: Windows Sysinternals
  
  Microsoft Windows Sysinternals: Library, learning resources, downloads, support, and community. Evaluate and find out how to install, deploy, and maintain Windows with Sysinternals utilities.
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• PC Tools - Essential Tools for your PC
  
  PC Tools PC software is highly trusted, award-winning security & utility software for Windows, including Spyware Doctor, Spyware Doctor with AntiVirus, Internet Security and Registry Mechanic. PC Tools products protect the privacy and security of Windows PC users as well as optimize system performance.
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