In order for a user to launch thin-client applications from the Launch Item gadget, the DeFrame, ICA, and RDP Web clients must be installed on the user's workstation.
The Web clients, packaged as .cab files, are installed the first time the user launches a thin-client application through the Launch Item gadget. The following .cab files are used:
dappx.cab: Contains the DeFrame Web client. The Launch Item gadget will install this client only if a user launches a thin-client application and the client is not already installed on the user's workstation.
wficat.cab: Contains the ICA Web client. The .cab file contains the 6.30.1050.0 version of the ICA Web client that replaces all versions prior to May 2002. The Launch Item gadget installs the ICA Web client the first time a user launches an application configured for an ICA session.
nmstsc.cab: Contains the RDP Web client. The .cab file contains the same traditional RDP Web client that shipped with the initial OnDemand Services release. The RDP Terminal Services Advanced Client (TSAC) is not yet supported. The Launch Item gadget installs the RDP Web client the first time a user launches an application configured for an RDP session.
For the Web clients to be installed on a Windows 95/98 workstation, the user must be logged into Windows on the workstation.
For the Web clients to be installed on a Windows NT/2000/XP workstation, the user must be logged in as a member of the Administrators or Power Users group. Logging in as Administrator or a Power User is only required the first time; users can log in through a non-Administrator account thereafter.