Browser:
Internet Explorer – URL Blocking
Any Browser – Blocking

Operating Systems:
Windows NT 4.0 (SP 6)
Windows 2000
Windows XP
Windows Vista (Pro and Home)

Hardware:
Intel Pentium II or higher
186 MB RAM
4 MB storage

Other:
Administrative rights to the target workstation
English Language Windows

IM Lock Enterprise:
Admin: Read/Write on a shared drive or directory
Client: Read on a shared drive or directory