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Should I remove QS/1 Install Agent?

What percent of users and experts removed it?
2% remove it98% keep it
Overall Sentiment
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How common is it?
Reach 0.0004%


VersionDistribution 14.29% 14.29% 14.29% 28.57% 14.29% 14.29%

QS/1 Install Agent


QS/1 Install Agent is a program developed by QS/1 Data Systems. The most used version is, with over 98% of all installations currently using this version. It adds a background controller service that is set to automatically run. Delaying the start of this service is possible through the service manager. The main program executable is qia.exe. The software installer includes 28 files and is usually about 61.81 MB (64,813,313 bytes). In comparison to the total number of users, most PCs are running the OS Windows XP as well as Windows 7 (SP1). The distribution of this has mostly been seen in the United States.

Program detailsProgram details

URL: www.qs1.com
Installation folder: C:\QS1\QIA
Uninstaller: C:\Program Files\InstallShield Installation Information\{1AB6D796-D425-43BA-BF7A-4B13B31EFAFC}\setup.exe -runfromtemp -l0x0009 ADDREMOVE -removeonly
Estimated size: 61.81 MB
Language: English

Program filesFiles installed by QS/1 Install Agent

Program executable:qia.exe
Name:QS/1 Install Agent
Additional files:
  • qcomm.dll - QS/1 (R) Interprocess Communications Layer (QS/1 (R) Interprocess Communications Layer (jdw))
  • 02100000001QiaInst.EXE (by Macrovision) - InstallShield (Setup.exe)
  • 02120000001QiaInst.EXE (by Macrovision)
  • 03010000001QiaInst.EXE
  • 03020000001QiaInst.EXE

Program behaviorsBehaviors exhibited

  • Qia.exe runs as a service named 'QS/1 Install Agent' (QIA) "Provides support for installing QS/1 products on this workstation.".

How do I remove QS/1 Install Agent?

You can uninstall QS/1 Install Agent from your computer by using the Add/Remove Program feature in the Window's Control Panel.
  1. On the Start menu (for Windows 8, right-click the screen's bottom-left corner), click Control Panel, and then, under Programs, do one of the following:
    • Windows Vista/7/8/10: Click Uninstall a Program.
    • Windows XP: Click Add or Remove Programs.
  2. When you find the program QS/1 Install Agent, click it, and then do one of the following:
    • Windows Vista/7/8/10: Click Uninstall.
    • Windows XP: Click the Remove or Change/Remove tab (to the right of the program).
  3. Follow the prompts. A progress bar shows you how long it will take to remove QS/1 Install Agent.

Win XP 43%
Win 10 14%
Windows Service? Yes
(Installs a service)
Uninstall it 2%
Keep it 98%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows XP 42.86%
Windows 7 42.86%
Windows 10 14.29%
Which OS releases does it run on?
Windows 7 Professional 42.86%
Microsoft Windows XP 42.86%
Windows 8.1 14.29%

Distribution by countryGeography

100.00% of installs come from the United States
Which countries install it?
  United States 100.00%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Hewlett-Packard 42.86%
Dell 28.57%
Compaq 14.29%
Lenovo 14.29%
Common models
Dell OptiPlex 9010 16.67%
Dell OptiPlex 760 16.67%
HP Compaq dc7600 Small Fo... 16.67%
LENOVO 3554A39 16.67%
HP Compaq 6000 Pro AiO Bu... 16.67%
Hewlett-Packard 110-217c 16.67%


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