Should I block it?

No, this file is 100% safe to run.

VersionsAdditional versions

13.6.20.2174 8.54%
13.6.20.2174 1.22%
13.6.20.2174 1.22%
13.6.20.2174 1.22%
13.6.20.2174 2.44%
13.6.20.2174 1.22%
13.6.0.1550 3.66%
13.6.0.1550 1.22%
13.6.0.1550 2.44%
13.6.0.480 19.51%
13.6.0.480 1.22%
13.6.0.480 1.22%
13.6.0.480 6.10%
13.6.0.480 1.22%
13.6.0.480 1.22%
13.6.0.480 1.22%
13.4.0.360 10.98%
13.4.0.360 4.88%
13.4.0.163 3.66%
12.3.0.32 17.07%
12.3.0.32 2.44%
12.3.0.32 1.22%
12.3.0.32 1.22%
12.3.0.15 3.66%

Relationships


PE structurePE file structure

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)

Remove avpref.dll
Version:   13.6.0.480
MD5:   4bdfbb3a85ea63f90b8ef17b7f515f46
SHA1:   32b03e699fa3dad3719711620f757587bf3507a9
SHA256:   6cf67728fb9512f49025cee5000c3d8a0fa5245a8059107bf2cce658f9bef924

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

DetailsDetails

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:13.6.0.480
Size:49.86 KB (51,056 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

ResourcesPrograms

The following programs will install this file
Avira GmbH
25% remove
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.

Windows OS versionsDistribution by Windows OS

OS versiondistribution
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 countryDistribution by country

Germany installs about 16.05% of Avira Free Antivirus.

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
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%
Should I remove It? Clean your PC of unwanted adware, toolbars and bloatware.

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