Should I block it?
No, this file is 100% safe to run.
Additional versions
Relationships
 PE file structure
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Show functions |
Import table
kernel32.dll
GetModuleFileNameW, MultiByteToWideChar, GetCurrentProcessId, GetCurrentThreadId, GetTickCount, QueryPerformanceCounter, IsDebuggerPresent, SetUnhandledExceptionFilter, UnhandledExceptionFilter, GetCurrentProcess, TerminateProcess, InterlockedCompareExchange, Sleep, InterlockedExchange, DecodePointer, EncodePointer, GetSystemTimeAsFileTime
msvcr100.dll
DllMain
Export table
DonePrefix
FreeCategoryList
FreeSelList
GetCategoryList
GetPrefix
GetPrefixCategory
GetPrefixEx
GetPrefixQua
GetSelList
InitPrefix
IsPrefixActive
IsPrefixHeuristic
SetPrefixActive
SetPrefixQua
SetPrefixSelectionFlag
avpref.dll
Avira Free Antivirus by Avira Operations GmbH & Co. KG (Signed)
| Version: | 13.4.0.163 |
| MD5: | 614dd960ca80044b1a69bf8562f6b72b |
| SHA1: | 707ecf24140fc13a19a9d309f5e553b017e417f4 |
| SHA256: | b0901d10bbfc9578e79da47144b4e4102941192a445bf2de45e78d8e9652c36a |
What is avpref.dll?
Avira Prefix Library is part of Avira Free Antivirus, a free antivirus program from Avira that runs as a background process which checks every file opened or downloaded. Like many antivirus programs, it can run a full or custom scan to check the PC for malware in order to remove them. It updates its virus definitions automatically everyday by default using the Internet.
About avpref.dll (from Avira Operations GmbH & Co. KG)
“Our entry-level antivirus eliminates many forms of malware, including worms, rootkits and costly dialers. System Scanner prevents infection from viruses, worms and Trojans. AHeAD Technology halts unkn”
Details
| File name: | avpref.dll |
| Publisher: | Avira Operations GmbH & Co. KG |
| Product name: | Avira Free Antivirus |
| Description: | Avira Prefix Library |
| Typical file path: | C:\Program Files\avira\antivir desktop\avpref.dll |
| File version: | 13.4.0.163 |
| Size: | 49.28 KB (50,464 bytes) |
| Certificate |
| Issued to: | Avira Operations GmbH & Co. KG |
| Authority (CA): | VeriSign |
| Effective date: | Wednesday, July 20, 2011 |
| Expiration date: | Sunday, July 20, 2014 |
| Digital DNA |
| PE subsystem: | Windows GUI |
| File packed: | No |
| Code language: | Microsoft Visual C++ 10.0 |
| .NET CLR: | No |
More details
Programs
The following programs will install this file
Avira AntiVir Personal includes a branded version of the Ask.com Toolbar, a web browser extenstion that provides search advertising and results. Upon installation the user is presented with the option to install the Ask toolbar. If accepted, the toolbar will be installed in the user's web browser (Internet Explorer, Chrome and Firefox) and will modify the home page and search settings.
Distribution by Windows OS
| OS version | distribution |
| Windows 7 Ultimate |
34.15% |
|
| Microsoft Windows XP |
28.05% |
|
| Windows 7 Home Premium |
15.85% |
|
| Windows 7 Professional |
10.98% |
|
| Windows 7 Home Basic |
2.44% |
|
| Windows 7 Starter |
2.44% |
|
| Windows Vista Home Premium |
2.44% |
|
| Windows 8 Pro |
1.22% |
|
| Windows 7 Enterprise |
1.22% |
|
| Windows Vista Business |
1.22% |
|
Distribution by country
Germany installs about 16.05% of Avira Free Antivirus.
Distribution by PC manufacturer
| PC Manufacturer | distribution |
| ASUS |
29.85% |
|
| Hewlett-Packard |
17.91% |
|
| Toshiba |
11.94% |
|
| Intel |
8.96% |
|
| Acer |
7.46% |
|
| Lenovo |
5.97% |
|
| Dell |
5.97% |
|
| Compaq |
2.99% |
|
| Samsung |
2.99% |
|
| MSI |
2.99% |
|
| American Megatrends |
1.49% |
|
| Sahara |
1.49% |
|
