Should I block it?
No, this file is 100% safe to run.
 
 Additional versions
Additional versions
 
Relationships
     
    
        ShellExt.dll
Shell Extension by Lavasoft AB (Signed)
| Version: | 1.0.0.1 | 
| MD5: | e747581cf1cde07aa258643834d86acd | 
| SHA1: | b0874fbce3a49c7d0f6001a5017d530cef5c3686 | 
| SHA256: | c1dbea720f26121fa7129828d50563699bc54a663c330b0e2975a45dfb598d82 | 
Overview
shellext.dll is loaded as dynamic link library that runs in the context of a process. This is typically installed with the program Ad-Aware published by Lavasoft. The file is digitally signed by Lavasoft AB which was issued by the VeriSign certificate authority (CA).
 Details
Details
| File name: | shellext.dll | 
| Product name: | Shell Extension | 
| Typical file path: | C:\Program Files\lavasoft\ad-aware\shellext.dll | 
| File version: | 1.0.0.1 | 
| Size: | 153.84 KB (157,536 bytes) | 
| Certificate | 
| Issued to: | Lavasoft AB | 
| Authority (CA): | VeriSign | 
| Effective date: | Thursday, October 9, 2008 | 
| Expiration date: | Tuesday, October 11, 2011 | 
| Digital DNA | 
| PE subsystem: | Windows GUI | 
| File packed: | No | 
| Code language: | Microsoft Visual C++ 9.0 | 
| .NET CLR: | No | 
More details
 Programs
Programs
The following program will install this file
Ad-Aware is an anti-spyware and anti-virus program developed by Lavasoft that detects and removes malware, spyware and adware on a user's computer. According to Lavasoft, Ad-Aware detects spyware, computer viruses, dialers, Trojans, bots, rootkits, data miners, aggressive advertising, parasites, browser hijackers, and tracking components.
 
 Behaviors
Behaviors
Context menu handler
Located in '*\shellex\ContextMenuHandlers'
 Distribution by Windows OS
Distribution by Windows OS
| OS version | distribution | 
| Windows Vista Home Premium | 66.67% |  | 
| Windows 7 Home Premium | 33.33% |  | 
 Distribution by country
Distribution by country
United States installs about 100.00% of Shell Extension.
 Distribution by PC manufacturer
Distribution by PC manufacturer
| PC Manufacturer | distribution | 
| Toshiba | 50.00% |  | 
| Hewlett-Packard | 50.00% |  |