mssvp.dll
Windows Search by Microsoft
This is a Windows system installed file with Windows File Protection (WFP) enabled.
Overview
mssvp.dll has 5 known versions, the most recent one is 7.00.7600.16385 (win7_rtm.090713-1255). The average file size is about 900.7 KB. 
What is mssvp.dll?
MSSearch Vista Platform 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 mssvp.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,”
|  Details
 | 
| File name: | mssvp.dll | 
| Publisher: | Microsoft Corporation | 
| Product name: | Windows® Search | 
| Description: | MSSearch Vista Platform | 
| Typical file path: | C:\Windows\System32\mssvp.dll | 
| Original name: | mssvp.dll.mui | 
 Behaviors
Behaviors
(Note, the behaviors below are for all versions of mssvp.dll, select a unique version for details.)
Approved shell extensions
Located in the registry at 'SOFTWARE\Microsoft\Windows\CurrentVersion\Shell Extensions\Approved'
- 'Client Side Cache Namespace Extension' with CLSID {BD7A2E7B-21CB-41b2-A086-B309680C6B7E}
- 'Microsoft Windows MAPI Preview Handler' with CLSID {53BEDF0B-4E5B-4183-8DC9-B844344FA104}
- 'MAPI Search Namespace Extension' with CLSID {89D83576-6BD1-4c86-9454-BEB04E94C819}
 All file variations of mssvp.dll
All file variations of mssvp.dll
 Distribution by Windows OS
Distribution by Windows OS
| OS version | distribution | 
| Windows Vista Home Premium | 76.75% |  | 
| Windows Vista Home Basic | 10.75% |  | 
| Windows Vista Ultimate | 6.00% |  | 
| Windows Vista Business | 6.00% |  | 
| Windows 7 Professional | 0.25% |  | 
| Windows Vista™ Home Premium | 0.25% |  | 
 Distribution by country
Distribution by country
United States installs about 64.05% of Windows® Search.
 Distribution by PC manufacturer
Distribution by PC manufacturer
| PC Manufacturer | distribution | 
| Dell | 30.36% |  | 
| Hewlett-Packard | 19.52% |  | 
| Toshiba | 13.01% |  | 
| Sony | 13.01% |  | 
| Gateway | 8.67% |  | 
| ASUS | 5.78% |  | 
| Acer | 5.06% |  | 
| Lenovo | 1.45% |  | 
| Intel | 1.45% |  | 
| Packard Bell | 0.72% |  | 
| Samsung | 0.72% |  | 
| GIGABYTE | 0.24% |  |