1)   HS WinPerfect 6.17
Windows system optimizer which checks and fixes any hard-disk problems, cleans hard-disk, system registry, finds duplicates, optimizes memory, tunes-up system settings, accelerates internet connection, improves cpu usage, manages security

 2)   HS CleanDisk Pro 6.15
Windows system optimizer which cleans hard-disk and system registry, finds duplicate files, optimizes memory, tunes-up system specific settings, accelerates internet connection, manages security and backup issues

 3)   HS CleanDisk Eco 5.49
Windows system optimizer which cleans hard-disk, system registry and optimizes memory

 4)   HS MailPerfect 1.1
Email filtering software which sits behind an email client such as Outlook Express. It wakes up when the client starts checking email messages from the account and lists messages classifying them in three categories: viruses, spams and useful emails