Should I block it?
No, this file is 100% safe to run.
 
Relationships
|  PE file structure
 | Show functions | 
Import table
kernel32.dll
QueryPerformanceCounter, Sleep, InterlockedCompareExchange, TerminateProcess, GetCurrentProcess, GetSystemTimeAsFileTime, GetCurrentProcessId, GetCurrentThreadId, GetTickCount, InterlockedExchange, DisableThreadLibraryCalls, IsDebuggerPresent, SetUnhandledExceptionFilter, UnhandledExceptionFilter
msvcr90.dll
DllMain
Export table
qt_plugin_instance
qt_plugin_query_verification_data
 
     
    
        qjpeg4.dll
Qt4 by SightSpeed Inc. (Signed)
| Version: | 4.5.0.14 | 
| MD5: | 018614ea44e195a62242db6d2bc62ad4 | 
| SHA1: | d9f65ee2885cfcbcbc3b8e971fd34e4688148932 | 
| SHA256: | a0adbb7a28a34da71c30439e64b7e78cebc213dc301018c029aff03bcf7bf40c | 
Overview
qjpeg4.dll is loaded as dynamic link library that runs in the context of a process. The file is digitally signed by SightSpeed Inc. which was issued by the VeriSign certificate authority (CA).
 Details
Details
| File name: | qjpeg4.dll | 
| Publisher: | Nokia Corporation and/or its subsidiary(-ies) | 
| Product name: | Qt4 | 
| Description: | C++ application development framework. | 
| Typical file path: | C:\Program Files\logitech\vid hd\plugins\imageformats\qjpeg4.dll | 
| File version: | 4.5.0.14 | 
| Size: | 134.83 KB (138,064 bytes) | 
| Certificate | 
| Issued to: | SightSpeed Inc. | 
| Authority (CA): | VeriSign | 
| Effective date: | Wednesday, May 7, 2008 | 
| Expiration date: | Sunday, June 5, 2011 | 
| Digital DNA | 
| PE subsystem: | Windows GUI | 
| File packed: | No | 
| Code language: | Microsoft Visual C++ 9.0 | 
| .NET CLR: | No | 
More details
 Distribution by Windows OS
Distribution by Windows OS
| OS version | distribution | 
| Windows 7 Home Premium | 44.44% |  | 
| Windows Vista Home Premium | 22.22% |  | 
| Windows 7 Ultimate | 11.11% |  | 
| Microsoft Windows XP | 11.11% |  | 
| Windows 7 Professional | 11.11% |  | 
 Distribution by country
Distribution by country
United States installs about 77.78% of Qt4.
 Distribution by PC manufacturer
Distribution by PC manufacturer
| PC Manufacturer | distribution | 
| Toshiba | 44.44% |  | 
| Dell | 22.22% |  | 
| Sony | 22.22% |  | 
| Acer | 11.11% |  |