Cordobo » Microsoft http://cordobo.com Weblog of Andreas Jacob on Webdesign and CSS Mon, 20 Feb 2012 09:57:30 +0000 en hourly 1 http://wordpress.org/?v=3.3.2 Uninstall “Microsoft .Net Framework Assistent” Firefox add-on http://cordobo.com/878-uninstall-microsoft-net-framework-assistent/ http://cordobo.com/878-uninstall-microsoft-net-framework-assistent/#comments Sat, 21 Feb 2009 22:16:26 +0000 Andreas Jacob http://cordobo.com/?p=878 Windows Update comes with a sort of surprise this time for us firefox users. Microsoft .Net Framework 3.5 SP1 installs an extension named “Microsoft .Net Framework Assistant 1.0“. The add-on adds support for “Clickonce” and the ability to report installed .Net versions to the web server. Well, I suppose you neither like Microsofts way to distribute the add-on (no uninstall routine, the uninstall button is deactivated) nor the way Firefox handles access to your browser. So let’s get rid of it.

Uninstall Microsoft .Net Framework Assistent
Screenshot of the Firefox “add-ons dialogue”. The uninstall option is disabled.

Uninstall the “Microsoft .Net Framework Assistant 1.0″ add-on

  1. Hit “Start › Run › “regedit” – STOP! and hit “CTRL + SHIFT + ENTER” (“Run as Administrator”)
  2. Navigate to “HKEY_LOCAL_MACHINE\SOFTWARE\Mozilla\Firefox\extensions“
  3. Right click on the entry “{20a82645-c095-46ed-80e3-08825760534b}” and delete it
  4. Navigate to “HKEY_LOCAL_MACHINE\SOFTWARE\MozillaPlugins“
  5. Right click on the subkey “@microsoft.com/WPF,version=3.5” and delete it
  6. Open Firefox and enter “about:config” in the address bar
  7. Filter for “general.useragent.extra.microsoftdotnet” and “microsoft.CLR.clickonce.autolaunch” and delete/reset the strings (if applicable)
  8. Restart Firefox and goto “C:\Windows\Microsoft.NET\Framework\v3.5\Windows Presentation Foundation“
  9. Rename the folder “DotNetAssistantExtension” to “DotNetAssistantExtensionOld” and the file NPWPF.dll to NPWPF.dll.old (you can delete the folder and the file later if you don’t encounter problems)

This worked for me. I take no responsibility ;-)

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