This version of Citrix Receiver does not support selected encryption [Error 1046: The Virtual Driver is not loaded]

At a customer we are building an environment based on the following technologies.

  • Windows 2008R2
  • Citrix Xenapp 6.5
  • RES WorkspaceManager 2011
  • RES VDX (former workspace extender)
  • Windows 2003 (Legacy Farm)
  • XenApp 5.0 (Legacy Farm)

At the client side we use a HP thinclient with Windows 7 embedded with the Citrix receiver 3.0.

During the tests of the environment we experienced an error message. When starting a Citrix XenApp session with RES VDX enabled the following error might occur: “This Version of Citrix Receiver does not support the selected encryption. [Error 1046] The Virtual Driver is not loaded”.

The second logon attempt runs without any problems. This issue only occurs when using the Citrix Receiver 3.0 or higher. When using earlier ICA client versions , this error will not occur.

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The Solution:
RES created a FixPack. This FixPack can be requested if you have a valid Solution Assurance.

More information: RES Customer Portal

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Also Citrix created a knowledge base article: CTX133536