Program Compatibility Assistant

pcalua.exe. What is it?

The pcalua.exe is a Program Compatibility Assistant.

This file is part of Microsoft® Windows® Operating System. Pcalua.exe is developed by Microsoft Corporation. It’s a system and hidden file. Pcalua.exe is usually located in the %SYSTEM% folder and its usual size is 8,192 bytes.


Pcalua.exe creates new records and folders in the Windows registry. Check your system performance to eliminate possible application conflicts and system failures. Free scan for PC issues (Special offer. See more information about Outbyte, uninstall instructions, EULA and Privacy Policy)


Author: Microsoft CorporationProcess: Program Compatibility AssistantPart Of: Microsoft® Windows® Operating SystemCommon path(s): %SYSTEM%
subfolder in %WINDOWS%
Keywords(s): systemFilesize(s): 8,192 bytes, 7,680 bytes, 11,776 bytes


Malware risk: Scan your PC for viruses and Trojans
Some viruses infect computers while disguised in the form of legitimate files, like pcalua.exe. Run an antivirus scan to ensure your PC is clean and safe.
Registry Errors: Free scan (run Registry Cleaner)Uninstallation: N/A Uninstall (run Unistall Manager)Disk & Memory Usage: N/A Free scan (run Task Manager)

User opinions

pcalua.exe has the following rating: 5.0
based on 5 user opinions.
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by SecurityRussia on Sep 23, 2011 at 09:13 AM

k1, it's malware than filesize another, than specizied. In this case full scanning and check from AV - vendor needed/

0 | 6
by AmaCha on May 14, 2011 at 11:54 AM

this file is also a part of Windows 7/2008 OS.

2 | 1
by kellb on Dec 27, 2010 at 06:17 AM

its ok you have some other problem run a scan to figure it out

4 | 1
by GertMenkel on Jul 19, 2010 at 07:47 AM

It's part of the Windows Vista OS, not malware

17 | 1
by k1 on Jul 7, 2010 at 08:00 AM

It's a malware and won't let you play any video right after you wanna run your player the message will popup ! (I'm using win xp sp3) I tied reinstal my players and it didn't help. sill looking for some Reg fix.

3 | 34
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