Should I block it?

No, this file is 100% safe to run.

VersionsAdditional versions

6.3.9600.16384 (winblue_rtm.130821-1623) 5.35%
6.3.9600.16384 (winblue_rtm.130821-1623) 0.09%
6.3.9431.0 (winmain_bluemp.130615-1214) 0.28%
6.3.9431.0 (winmain_bluemp.130615-1214) 0.03%
6.2.9200.16384 (win8_rtm.120725-1247) 2.65%
6.2.9200.16384 (win8_rtm.120725-1247) 16.89%
6.2.8400.0 (winmain_win8rc.120518-1423) 0.09%
6.2.8400.0 (winmain_win8rc.120518-1423) 0.09%
6.2.8250.0 (winmain_win8beta.120217-1520) 0.03%
6.2.8102.0 (winmain_win8m3.110823-1455) 0.09%
6.1.7600.16385 (win7_rtm.090713-1255) 48.15%
6.1.7600.16385 (win7_rtm.090713-1255) 25.35%
6.1.7600.16385 (win7_rtm.090713-1255) 0.89%

Relationships

acproxy.dll

Autochk Proxy DLL by Microsoft

Remove acproxy.dll
Version:   6.2.9200.16384 (win8_rtm.120725-1247)
MD5:   43b464f0ff01751caf9df9e9db508dd2
SHA1:   903eb7279b5250ed57657ef97be2db5c8bf748e2
SHA256:   6d7a750182ebfe7fe5af5069263915a2cf90d46b2e3a126f3ed4376f34535bb9
This is a Windows system installed file with Windows File Protection (WFP) enabled.

Overview

acproxy.dll executes as a process under the SYSTEM account with extensive privileges (the system and the administrator accounts have the same file privileges). It is an auto-starting process that used the Windows Task Scheduler service to load when the user logs into Windows (sometimes this is required to bypass the UAC protection). The assembly utilizes the .NET run-time framework (which is required to be installed on the PC). This version is installed on Windows 8 and is compiled as a 64 bit program.

DetailsDetails

File name:acproxy.dll
Publisher:Microsoft Corporation
Product name:Autochk Proxy DLL
Description:Microsoft® Windows® Operating System
Typical file path:C:\Windows\System32\acproxy.dll
Original name:acproxy.DLL.MUI
File version:6.2.9200.16384 (win8_rtm.120725-1247)
Product version:6.2.9200.16384
Size:12 KB (12,288 bytes)
Digital DNA
File packed:No
Code language:Microsoft Visual C# / Basic .NET
.NET CLR:Yes
.NET NGENed:No
More details

BehaviorsBehaviors

Scheduled tasks
  • The job 'Proxy' runs on boot in the path '\Microsoft\Windows\Autochk\Proxy'
  • Entry path '\Microsoft\Windows\Autochk\Proxy'
Scheduled tasks startups
Set to load on user login (bypasses Windows UAC if enabled)
  • Login entry path '\Microsoft\Windows\Autochk\Proxy'

ResourcesResource utilization

(Note: statistics below are averages based on a minimum sample size of 200 unique participants)
Averages
 
Memory
Private (maximum):2.28 MB
Private (minimum):2.28 MB

BehaviorsProcess properties

Platform:64-bit
Command line:C:\Windows\System32\rundll32.exe /d acproxy.dll,performautochkoperations
Owner:SYSTEM
Parent process:services.exe (by Microsoft)

Windows OS versionsDistribution by Windows OS

OS versiondistribution
Windows 7 Home Premium 31.00%
Windows 8.1 16.00%
Windows 7 Ultimate 14.00%
Windows 8.1 Pro 10.50%
Windows 7 Professional 8.50%
Windows 8 4.00%
Windows 8.1 Single Language 4.00%
Windows 8 Pro 3.00%
Windows 8 Single Language 2.50%
Windows 8.1 Pro with Media Center 1.50%
Windows 8.1 N 1.00%
Windows 8 Enterprise N 1.00%
Windows Seven Black Edition 1.00%
Windows 7 Home Basic 1.00%
Windows 8.1 Enterprise Evaluation 1.00%

Distribution by countryDistribution by country

United States installs about 53.00% of Autochk Proxy DLL.

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
Dell 24.22%
Hewlett-Packard 17.58%
ASUS 17.19%
Acer 11.33%
Toshiba 10.16%
Lenovo 9.38%
Sony 3.13%
Alienware 2.34%
Samsung 2.34%
Intel 1.56%
GIGABYTE 0.78%
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