Event 1003, Citrix desktop service "Failed to start WCF services"
Article ID: CTX223517
Updated On:
Description
Event 1003, Citrix desktop service
Error Details:
Failed to start WCF services with Exception ‘Object reference not set to an instance of an object.’ of type ‘System.NullReferenceException
Error Details:
Failed to start WCF services with Exception ‘Object reference not set to an instance of an object.’ of type ‘System.NullReferenceException
Environment
Caution! 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. Be sure to back up the registry before you edit it.
Resolution
- Make sure that under HKCR\Interface\{BEE5F9CD-A777-47C7-BA5A-CDD82FFEC4D8}\TypeLib, (Default) is set to {9A0B1570-B01D-4196-BDC9-4CE132108BA6}, and the value is accessible
- Make sure that under HKCR\TypeLib\{9A0B1570-B01D-4196-BDC9-4CE132108BA6}\1.0\0\win32, (Default) is set to C:\Program Files\Citrix\ICAService\StackControlInterop.tlb, and the value is accessible
- Make sure the file C:\Program Files\Citrix\ICAService\StackControlInterop.tlb exists, and is accessible
- If under HKCR\TypeLib\{9A0B1570-B01D-4196-BDC9-4CE132108BA6}\1.0\0 a value win64 exists, delete it
- NOTE: Please take a registry backup, before making the changes.
Problem Cause
A incorrect registration itemIssue/Introduction
The article describes a VDA unregistered issue caused by WCF service start failure
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