safe file


Program Compatibility Assistant User Interface Module

Is pcaui.dll spyware or a virus?

pcaui.dll. What is it?

The pcaui.dll is a Program Compatibility Assistant User Interface Module.

This file is part of Microsoft® Windows® Operating System. Pcaui.dll is developed by Microsoft Corporation. It’s a system and hidden file. Pcaui.dll is usually located in the %SYSTEM% folder and its usual size is 84,480 bytes.


The pcaui.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: Program Compatibility Assistant User Interface ModulePart Of: Microsoft® Windows® Operating SystemCommon path(s): %SYSTEM%
subfolder in %WINDOWS%
Keywords(s): systemFilesize(s): 84,480 bytes, 464,384 bytes, 87,040 bytes, 46,080 bytes

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