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Run a free scan to identify all PC issues related to mso.dll and affecting PC performance.
mso.dll. What is it?
MSO.DLL is a Microsoft Office component.
This file is part of Microsoft Office 2003 and 2007. MSO.DLL is developed by Microsoft Corporation. MSO.DLL is usually located in the %PROGRAM_FILES% sub-folder and its usual size is 16,870,712 bytes.
How to Fix MSO.DLL Errors
Sometimes Microsoft Office programs, especially Microsoft Outlook, fail to start due to MSO.DLL file incompatibility with the version of Microsoft Office. This can happen because of an incorrect Office update or a faulty install of an Outlook add-on. This problem can usually be fixed by either updating Microsoft Office to the latest version, or removing the new Outlook add-on. If that doesn’t help, try running a repair install of Microsoft Office.
In some cases, MSO.DLL fails on program shutdown. This can happen due to associating Microsoft Office programs with new devices, such as a printer. This happens when uninstalling the old printer also uninstalls the local printer. To solve this MSO.DLL error, you need to install a local printer again using any driver.
The MSO.DLL process is safe, but you shouldn’t disable it if you use Microsoft Office.
We also recommend optimizing your computer.
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Author: Microsoft CorporationPart Of: 2007 Microsoft Office systemCommon path(s): subfolder %PROGRAM_FILES%