How to disable specific client drive mappings

Ever wanted to disable certain client drives in your XenApp or XenDesktop environment?

Here’s a good way to disable certain client drive mappings through either the registry or the Web Interface.

Disabling Specific Client Drive Mappings at the registry

Differences in Client Drive Mapping between XenApp 6.0 and 6.5, Presentation Server 4.5, and XenApp 5.0

This article describes the difference between earlier versions of Client Drive Mapping (CDM) and the version in Citrix XenApp 6.0 and 6.5.


Versions prior Citrix XenApp 6.0, use the method of network mapping the local drive of the user. This method only mapped local drivers, not network drivers of the user machine. For users to be able to add network driver mappings they require a script to use the net use command and locate the drives from \CLIENT. With this method, the administrator is also required to create a log off script to delete these drives when the session is logged off. On XenApp 6.0, the CDM system uses a completely different mechanism; it uses the concept of redirection; the same concept used with Microsoft Remote Desktop connections.

Simple things to know about the client drive redirection:

  • Mapped drives are classified inside the session as Network Drives; redirected drivers have no specific Windows category so they are classified as Others.

Hotfix XA650R01W2K8R2X64033 for Citrix XenApp 6.5 released

Citrix has released a new hotfix for XenApp 6.5.

XA650R01W2K8R2X64033 has the following fixes:

  1. When changing the XML server’€™s logon control to prohibit logons, the Citrix XML Service might become unresponsive. As a result, connected users might not be able to enumerate applications and for authenticated users, the sessions might fail to launch.

    [From XA650R01W2K8R2X64033][#LA1787]

  2. This fix addresses a security vulnerability. For more information, see Knowledge Center article CTX135066.

    [From XA650R01W2K8R2X64033][#LA2089]

  3. This fix addresses a security vulnerability. For more information, see Knowledge Center article CTX135066.

    [From XA650R01W2K8R2X64033][#LA2325]

  4. This fix addresses an issue that prevents “restricted users” (those configured with permissions to log on specifically to non-XenApp servers) from launching applications published on XenApp servers from the Web Interface.

    [From XA650R01W2K8R2X64033][#LA2678]

Fixes from Replaced Hotfixes

  1. The Citrix XML Service might become unresponsive after running continuously for several days.

    [From XA650R01W2K8R2X64005][#LA1139]

To download this hotfix or read more about the installation of this hotfix click here.