7.00.7600.16385 (win7_rtm.090713-1255) 0.42%
7.00.6002.18005 (lh_sp2rtm.090410-1830) 50.00%
7.00.6002.18005 (lh_sp2rtm.090410-1830) 22.92%
7.0.6001.16503 (longhorn(wmbla).080526-2159) 22.50%
6.0.6001.18000 (longhorn_rtm.080118-1840) 0.42%
6.0.6000.16386 (vista_rtm.061101-2205) 3.75%



Windows Search by Microsoft

Remove propsys.dll
This is a Windows system installed file with Windows File Protection (WFP) enabled.


propsys.dll has 6 known versions, the most recent one is 7.00.7600.16385 (win7_rtm.090713-1255). The average file size is about 861.83 KB.

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


(Note, the behaviors below are for all versions of propsys.dll, select a unique version for 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}

VersionsAll file variations of propsys.dll

MD5SHA-1File size
f06bb4e336ea57511fdbafafcc47de62 bfee1b9d2269d26d99c8e462825ee8399c8bd4ec 1.16 MB
7dacd94118e2d8b6d72f47adeb0367bf 3e45576aed4a7aeab1d598c652622fb6e1f7b7aa 737 KB
fe13271ef661f8be83a1a0d3366164d0 8614b04b0799e2302bc2db1449f6feda9da25641 901.5 KB
89d74683c859b7982056d15938baca3e 7a3e608ee6348325db83f5e564ef60c116bc4d6a 736.5 KB
6bbabb9ac7c5351b0907df61e4bf439c 17affd7b76b86bd692eee6199ed761ee54a2cebf 895.5 KB
96bc076d1ba9fee72709fc72dc025270 2e15ef43377d909e3647d0046a60a7ee496ae704 716.5 KB

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%
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