MailEnable Professional 

MailEnable Professional Edition is a enterprise level mail server for Windows 2000/NT/XP. It supports SMTP and POP3, supports an unlimited amount of email addresses, domains, groups and mailing lists.
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FTGate 

FTGate4 is a powerful Windows mail server with comprehensive Groupware functionality. Features include calendaring, contacts, IMAP, anti-spam , anti-virus support, multiple domains, Web Administration, WebMail, instant messaging, SPF,SSL + more.
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CustomError 

Port80 Software?s CustomError for IIS allows developers and administrators to easily create customized 404 and other default error pages, improving user experience and reducing customer abandonment rates.
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WebQuiz XP 

WebQuiz XP is the new software product which allows you to create interactive HTML quizzes, tests and assessments that you can immediately answer on-screen or publish to the Internet. It includes several ready-to-use professional templates.
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