ThinApp 4.6.1 Adobe Reader SideBySide error

Hi guys

I have a problem with a thinapped Adobe Reader 10.10 on a terminal server farm. The application log is full with the following error message (almost all minute a new one):

Level: Error, Source: SideBySide, EventID: 33

Activation context generation failed for "\\fileserver\userhome$\Programs\AppData\Thinstall\TA_ADOBE_READER_1010_MUI\SKEL\23364-4.manifest". Dependent Assembly Adobe.Reader.Dependencies,processorArchitecture="x86",publicKeyToken="0000000000000000",type="win32",version="10.0.0.0" could not be found. Please use sxstrace.exe for detailed diagnosis.

I terminal server (Citrix XenApp 6.0) is based on Windows Server 2008 R2 SP1 MUI (64-bit).

It looks like an architecture problem but the packager VM is also a x64 system (Windows 7 x64 Enterprise).

ThinApp version: 4.6.1 build 361923

Somebody had a simliar problem or an idea what it could be?

Thank you and best regards,

Nicola