Client access licenses are not a software product; instead, they are a license that gives the user the right to access the services provided by servers legally.

The Enterprise CAL Suite includes Microsoft Windows Server CAL, Microsoft System Management Server CAL, Microsoft Exchange Server Standard and Enterprise CAL, Microsoft Office SharePoint Server Standard and Enterprise CAL, Microsoft Exchange Server Standard and Enterprise CAL, and Microsoft Windows Rights Management Services CAL. In addition, the Enterprise CAL suite includes the Microsoft Operations Manager Desktop Operations Management License (OML) and the Forefront Security Suite.