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22 February 2008 @ 4pm


Integrating Microsoft Updates with MUWEB.DLL

Muweb.dll is a module linked with Microsoft Updates (not to be confused with Windows Updates) in Windows operating systems. Microsoft Update is the new version of Windows Update and it integrates updates for Windows and MS Office as one package, downloading updates for all security and critical components simultaneously.

As part of Microsoft Windows, muweb.dll is a system-critical component that should not be deleted or disabled for any reason. The common path for muweb.ll is C:\WINDOWS\system32\muweb.dll,LaunchMUSite , which is a direct link to Microsoft Updates on their web site.

If you are running a manual installation of Microsoft Updates, you must copy /Y Microsoft-Update\muweb.inf “%windir%\Downloaded Program Files” and copy /Y Microsoft-Update\muweb.dll “%windir%\system32”, and then register the file via regsvr32 /s muweb.dll (“%” is substituted with the drive name and system folder( to get the ActiveX Controls for updates.

To automatically get the required updates, simply go to Start, Control Panel, System, Automatic Updates and click On.

The most common error known in association with muweb.dll is the following message appearing when trying to access the Microsoft Update web site:

“Error number: 0x80245003]
The website has encountered a problem and cannot display the page you are
trying to view.”

To solve this problem/error, you can try the options given below.

First, go to Start, Run and type: cmd and press Enter. In the opened command prompt, type Net stop WuAuServ and press enter. Once the command is completed, go back to Start, Run and type %windir% and press Enter (% should be substituted with relevant drive name and system folder). In the opened folder, rename the Software Distribution folder as Sdold. Open a new command prompt window, type Net start WuAuServ, and press Enter.

Go to Internet Options, General, Temporary Internet Files, Settings and click on View Objects. Remove WuWebControl Class and MuWebControl Class by right clicking on each. Delete both c:\windows\system32\wuweb.dll and c:\windows\system32\muweb.dll. Go to http://update.microsoft.com/microsoftupdat…b?1121269785890 and get the new files.