Citrix releases Hotfix DDCE400W2K3X64008 for XenDesktop 4.0 for Windows Server 2003 (64-bit)
The hotfix is a limited release hotfix, and addresses problems with MFCOM and PowerShell.
Here is a quick overview of the fixes:
When using MFCOM to create and assign Citrix policies via Windows PowerShell, an error occurs if you try to assign the policy to a string containing a wildcard(*). This happens only for the first string in the assignment; subsequent strings can contain wildcards and work correctly.