safe file


Application Compatibility UI Library

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compatui.dll. What is it?

The compatui.dll is a Application Compatibility UI Library. Sometimes it’s called Application Compatibility UI Library.

This file is part of Microsoft® Windows® Operating System. Compatui.dll is developed by Microsoft Corporation. It’s a system and hidden file. Compatui.dll is usually located in the %SYSTEM% sub-folder and its usual size is 252,928 bytes.


The compatui.dll process is safe and disabling it can be dangerous, because programs on your computer need it to work correctly.

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General Information

Security risk: Free spyware & virus scanRegistry Errors: Free scan (run Registry Cleaner)Uninstallation: N/A Uninstall (run Unistall Manager)Disk & Memory Usage: N/A Free scan (run Task Manager)


Author: Microsoft CorporationProcess: Application Compatibility UI LibraryPart Of: Microsoft® Windows® Operating SystemCommon path(s): subfolder in %SYSTEM%
subfolder in %WINDOWS%
Keywords(s): systemFilesize(s): 252,928 bytes, 282,624 bytes

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