Should I block it?

No, this file is 100% safe to run.

VersionsAdditional versions

7.00.7600.16385 (win7_rtm.090713-1255) 0.56%
7.00.6002.18005 (lh_sp2rtm.090410-1830) 67.04%
7.00.6002.18005 (lh_sp2rtm.090410-1830) 30.73%
6.1.7600.16385 (win7_rtm.090713-1255) 1.68%



Windows Search by Microsoft

Remove propsys.dll
Version:   6.1.7600.16385 (win7_rtm.090713-1255)
MD5:   f74950d2c7297b23d925d90e936da17f
SHA1:   84514ba4cb08f6e686e82028b9ed96c4694eda35
SHA256:   d306ff72f772be42fe42fed8c1a0c7b9189128beae32152cd9b3631d0dfc6e1d
This is a Windows system installed file with Windows File Protection (WFP) enabled.

What is propsys.dll?

Microsoft Property System for Windows Search, formerly known as Windows Desktop Search (WDS) is an indexed desktop search platform. Windows Search builds a full-text index of files on a computer. Windows Search features incremental search search. The search service consists of several components, including the Gatherer, the Merger, the Backoff Controller, and the Query Processor, among others.

About propsys.dll (from Microsoft)

Windows Search provides an easy and comprehensive solution for finding and organizing the content you care about, whether it's on your PC, in an e-mail message or attachment, on a remote file share,


File name:propsys.dll
Publisher:Microsoft Corporation
Product name:Windows® Search
Description:Microsoft Property System
Typical file path:C:\Windows\System32\propsys.dll
Original name:propsys.dll.mui
File version:6.1.7600.16385 (win7_rtm.090713-1255)
Product version:6.1.7600.16385
Size:163 KB (166,912 bytes)
Digital DNA
File packed:No
More details


Approved shell extension
Located in the registry at 'SOFTWARE\Microsoft\Windows\CurrentVersion\Shell Extensions\Approved'
  • 'Office Document Property Handler' with CLSID {97e467b4-98c6-4f19-9588-161b7773d6f6}

Windows OS versionsDistribution by Windows OS

OS versiondistribution
Windows Vista Home Premium 73.86%
Windows Vista Home Basic 11.93%
Windows Vista Ultimate 8.52%
Windows Vista Business 4.55%
Windows 7 Professional 0.57%
Windows Vista™ Home Premium 0.57%

Distribution by countryDistribution by country

United States installs about 63.01% of Windows® Search.

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
Dell 28.95%
Hewlett-Packard 19.74%
Toshiba 14.47%
Sony 11.84%
Gateway 9.21%
ASUS 6.58%
Acer 4.61%
Lenovo 1.32%
Intel 1.32%
Packard Bell 0.66%
Samsung 0.66%
Should I remove It? Clean your PC of unwanted adware, toolbars and bloatware.

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