84,488,480 programs installed

Should I remove PECompact?

What percent of users and experts removed it?
10% remove it90% keep it
Overall Sentiment
What do people think about it?
(click star to rate)
How common is it?
Reach 0.0010%


VersionDistribution 10.53%
3.03.23 5.26%
3.03.19 5.26%
3.03.18 5.26%
3.02.2 68.42%
3.02.1 5.26%

Other programs by Bitsum Technologies


What is PECompact?

Compresses win32 modules (EXE, DLL, etc..) while leaving them fully functional.

About  (from Bitsum Technologies)

An executable compressor, PEC compresses Windows modules (EXE, DLL, SCR, etc..) substantially, while leaving them able to be run just as before. At runtime, compressed modules are rapidly decompressed in memory. Smaller (%3C50%) size usually means quicker load time. PECompact generally compresses files much smaller tha...  Read more


PECompact is a software program developed by Bitsum Technologies. The most common release is 3.02.2, with over 98% of all installations currently using this version. The primary executable is named pec2gui.exe. The setup package generally installs about 63 files and is usually about 4.68 MB (4,907,246 bytes). Relative to the overall usage of users who have this installed on their PCs, most are running Windows 7 (SP1) and Windows XP. While about 52% of users of PECompact come from the United States, it is also popular in Brazil and Germany.

Program detailsProgram details

URL: bitsum.com/pecompact
Installation folder: C:\Program Files\pecompact
Uninstaller: "C:\Program Files\PECompact\uninstall.exe"
Estimated size: 4.68 MB

Program filesFiles installed by PECompact

Program executable:pec2gui.exe
PECompact GUI
Path:C:\Program Files\pecompact\pec2gui.exe
Additional files:
  • PEC2.exe - PECompact console mode application
  • PEWaterMark.exe - PEWaterM Application (PEWaterMark)
  • petrim.exe - PETrim Application (PETrim)
  • UpdateChecker.dll - UpdateChecker (Bitsum Technologies product update helper)
  • uninstall.exe - PECompact
  • pec2ldr_default.dll - pec2ldr_ Dynamic Link Library
  • PESubsys.exe - PESubsys Application
  • pec2rsrc.dll - PECompact resources
  • pec2rsrc_russian.dll
  • pec2rsrc_swedish.dll
  • bmstrstr.dll
  • pec.exe
  • pec2codec_aplib.dll
  • pec2codec_brieflz.dll
  • pec2codec_crc32.dll
  • pec2codec_elfhash.dll
  • pec2codec_ffce.dll
  • pec2codec_jcalg1.dll
  • pec2codec_lzma2.dll
  • pec2codec_messagebox.dll
  • pec2codec_password.dll
  • pec2hooks_api_fix_extradata.dll
  • pec2hooks_api_ispacked.dll
  • pec2hooks_api_watermark.dll
  • pec2hooks_fastimport.dll
  • pec2hooks_redirect.dll
  • pec2ldr_antidebug.dll
  • pec2ldr_no_rwx_mem.dll
  • pec2ldr_reduced.dll
  • pec2rsrc_korean.dll
  • pecgui.exe
  • PEChksum.exe
  • peclassify.exe
  • PEHideText.exe
  • PurchaseDialog.dll
  • testcodec.exe

How do I remove PECompact?

You can uninstall PECompact 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 PECompact, 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 PECompact.

Win 7 (SP1) 37%
Win 7 11%
Uninstall it 10%
Keep it 90%
United States

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows 7 47.37%
Windows XP 26.32%
Windows 10 26.32%
Which OS releases does it run on?
Microsoft Windows XP 26.32%
Windows 7 Ultimate 21.05%
Windows 7 Professional 10.53%
Windows 7 Enterprise 10.53%
Windows 7 Ultimate N 5.26%
Windows 8 Single Language 5.26%

Distribution by countryGeography

52.00% of installs come from the United States
Which countries install it?
  United States 52.00%
  Brazil 16.00%
  Germany 8.00%
  France 4.00%
  Russia 4.00%
  IQ 4.00%
  Japan 4.00%
  Iran 4.00%
  Turkey 4.00%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Intel 28.57%
Acer 14.29%
ASUS 14.29%
Samsung 14.29%
Dell 7.14%
Hewlett-Packard 7.14%
Toshiba 7.14%
Common models
INTEL DH77EB 12.50%
eMachines eM350 6.25%
Shuttle Inc SG31 6.25%
MSI MS-7668 6.25%


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