How it works
Uncovering the DNA of programs.
The Shell supports several search utilities that allow users to locate namespace objects such as files or printers. You can create a custom search engine and make it available to users by implementing and registering a search handler. (This feature is supported only under Windows XP or earlier.) Search handlers can be either static or dynamic. Static handlers are loaded only when they are selected by the user. Dynamic handlers are loaded by the Shell at startup and are not terminated until the Shell exits.
Explore top search handlers
browseui.dll (Shell Browser UI Library by Microsoft)
shell32.dll (Windows Shell Common Dll by Microsoft)
wabfind.dll (Find People by Microsoft)
dsquery.dll (Directory Service Find by Microsoft)
olkfstub.dll (Microsoft Outlook by Microsoft)
rpshellsearch.dll (RealPlayer (32-bit) by RealNetworks)
copernicagentext.dll (Copernic Agent Basic (Extensions) by Copernic Technologies)
pfse150.dll (QuickFinder Component by Corel)
pfse160.dll (QuickFinder Component by Corel)
wsftpsi.dll (WS_FTP Pro by Ipswitch 10 Maguire Road - Suite 220 Lexington MA 02421)
pfse110.dll (QuickFinder Component 11 by Novell c/o Corel Limited)
pdshext.dll (PowerDesk by Avanquest Publishing USA)
pwssearchhandler.dll (PWSSearchHandler Module )
flproshellextx86.dll (FileLocator Pro by Mythicsoft Ltd)
shellext.dll (FileLocator Lite by Mythicsoft Ltd)
pfse80.dll (PerfectFit 32-Bit by Novell)
findext.dll (Microsoft Bookshelf 98\0 by Microsoft)
cmffnd80.dll (CorelDRAW (TM) by Corel)
fi.dll (Autodesk, Inc. Fi by Autodesk)
pfse90.dll (QuickFinder Component 9 by Novell c/o Corel Limited)
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User Start Menu Programs
All Users Start Menu Programs
Startup Files (All Users) Run
Startup Files (All Users) Run Once
Startup Files (All Users) Run Once Setup
Startup Files (All Users) Run Once Ex
Startup Files (All Users) Run Services
Startup Files (All Users) Run Services Once
Startup Files (User) Run
Startup Files (User) Run Once
Startup Files (User) Run Once Setup
Startup Files (User) Run Once Ex
Startup Files (User) Run Services
Shared Task Scheduler Programs
User Init Startup Files
Winlogon Shell Startup Files
Startup Files Notify
Web Browser Plug-ins
Internet Explorer BHOs
Internet Explorer Toolbars
Internet Explorer Extensions
Internet Explorer Bars
Internet Explorer Plugin Extensions
Internet Explorer Plugins
Internet Explorer Shell Browsers
Internet Explorer Web Browsers
Internet Explorer URL Search Hooks
Internet Explorer Menu Extensions
Google Chrome Plugins
Shell Execute Hooks
App Init DLLs
Shell Service Object Delay Loads
Shell Open Commands
Context Menu Handlers
Copy Hook Handlers
Property Sheet Handlers
IOffice Antivirus Plugins
Credential Provider Filters
PROTOCOLS Namespace Handlers
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