How to programmatically check WCF Http/Non-Http Activation components?

.net windows wcf wix

10,432

Solution 1

For IIS7, check the following Registry Key:

HKEY_LOCAL_MACHINE\Software\Microsoft\InetStp\Components\

For the following components:

UPDATE: Since the above is true even when the components are not installed, try running this command from the command line:

sc query nettcpactivator

If the service is stopped or does not exist, the WCF Non-HTTP Activation components are likely not installed. To install them, run this command:

pkgmgr /iu: WCF-NonHTTP-Activation

For IIS8 with Windows Server 2012 (and probably Windows 8), you can check this registry key (for .NET 4.5)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\ServerManager\ServicingStorage\ServerComponentCache\NET-WCF-HTTP-Activation45\InstallState

zero means not installed, and 1 means installed.

10,432

Author by

Updated on June 17, 2022

Dmitrii almost 2 years

I need to detect if WCF Http/Non-Http Activation Components is installed during the installation of my product. How can I do so?

Thanks.
Dmitrii over 13 years

Unfortunately, this is not helpful. These three values exist in registry (and equal 1) independently of the http/non-http activation components are installed. (Windows Server 2008R2)
DarrellNorton over 13 years

How about checking to see if the "Windows Process Activation Service" exists and the status is Started?
Dmitrii over 13 years

Thanks, I'll try and write about the results. )
Dmitrii over 13 years

Good! It is exactly what I need! Thank you, Darrel!
Tung about 9 years

The key exists for 2012, but not for Windows 8