XenApp Nodes are AWOL in the Delivery Services Console

An associate of mine recently installed a new XenApp 5 server and was shocked to see that he could not manage the server, or the farm, using the Citrix Access Management Console or the Delivery Services Console.

Everything looked right. I was a bit confused as well, as we could see the server and farm if we opened the XenApp Advanced Configuration utility…

We found the following Citrix support article, CTX125827, and Resolution 2, copied below, resolved the problem for us.

From CTX125827:

Caution! This procedure requires you to edit the registry. Using Registry Editor incorrectly can cause serious problems that might 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. Back up the registry before you edit it.

Verify missing CLSIDs. Export and Delete CLSIDs if they are present.
a. Open Regedit.exe.
b. Navigate to HKEY_CLASSES_ROOT\CLSID\…
c. Look for the appropriate CLSID Keys (See below).
d. Export the CLSIDs if they present.
e. Delete the CLSIDs.
f. If the Keys are missing, move on to step 2.
Reregister the codebase for each DLL (see below).
Launch the Access Management Console.
Reregistering the Codebase

Command: %windir%\microsoft.net\framework\v2.0.50727\regasm /codebase [appropriate DLL, see below]

Registry Keys & Locations of the DLL’s

All Files are found in subdirectories under \Program Files\Common Files\Citrix.

(\Program Files (x86)\ if you are running 64-bit systems)

FORMAT:

[Extension Name]
[Registry location of Key 1]
[Registry location of Key 2]
[Directory location]\[DLLName.dll]

Presentation Server – Administration Snap-in:
HKCR\CLSID\{88A3…
HKCR\CLSID\{CEEF9A90…
Presentation Server – Administration Snap-in\pse.core.dll

Dashboard:
HKCR\CLSID\{E32017F9-…
HKCR\CLSID\{825FC1E4-…
Access Management Console – Dashboard Watcher\DWExtension.dll

Diagnostic Facility:
HKCR\CLSID\{E82B228F-…
HKCR\CLSID\{C6574881-…
Access Management Console – Diagnostics\CdfExtension.dll

My Knowledge:
HKCR\CLSID\{BF29D8E6-…
HKCR\CLSID\{D84A00D6-…
Access Management Console – Knowledge Base\KnowledgeBaseExtension.dll

Hotfix:
HKCR\CLSID\{915F6175-…
HKCR\CLSID\{4BA6F3AE-…
Access Management Console – Hotfix Management\HotfixExtension.dll

Presentation Server Console:
HKCR\CLSID\{47147579-…
HKCR\CLSID\{AF34B0C0-…
Access Management Console – Legacy Tools\MMCPlugins\LegacyToolsExt\CMCLaunchExtension.dll

Report Center:
HKCR\CLSID\{5783C6A8-…
HKCR\CLSID\{6BAF479E-…
Access Management Console – Report Center\ReportCentreExtension.dll

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