As you could read in this post Citrix has released Hotfix Rollup pack 1 for XenApp along side the Feature Pack.
In this post is described what the changes, replaced hotfixes and fixes are.
This hotfix rollup pack replaces the following hotfixes:
XA650W2K8R2X64001, XA650W2K8R2X64002, XA650W2K8R2X64004, XA650W2K8R2X64005, XA650W2K8R2X64006, XA650W2K8R2X64007, XA650W2K8R2X64008, XA650W2K8R2X64009, XA650W2K8R2X64011, XA650W2K8R2X64012, XA650W2K8R2X64013, XA650W2K8R2X64014, XA650W2K8R2X64015, XA650W2K8R2X64016, XA650W2K8R2X64017, XA650W2K8R2X64018, XA650W2K8R2X64019, XA650W2K8R2X64020, XA650W2K8R2X64021, XA650W2K8R2X64022, XA650W2K8R2X64023, XA650W2K8R2X64024, XA650W2K8R2X64025, XA650W2K8R2X64026, XA650W2K8R2X64027, XA650W2K8R2X64028, XA650W2K8R2X64029, XA650W2K8R2X64030
- Caution: Several items in this hotfix rollup pack require you to edit the registry. Using Registry Editor incorrectly can cause serious problems that may require you to reinstall your operating system. Citrix cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk.
- Skype might not recognize the camera, in which case the video portion of the Skype call is missing. To avoid this, make sure the camera is connected before launching Skype. If necessary, sign out of Skype and then sign back into Skype. In some cases, it might be necessary to disconnect and reconnect the camera before signing back into Skype.