PC Pitstop is the undisputed leader in PC diagnostics. Our running process library is culled from our database of over 100 million PC diagnostics and scans.

Tip from the PitCrew

Every process running on your computer takes up CPU cycles and valuable memory. For optimal PC performance and resource utilization, you should be aware of every process on your computer. PC Pitstop designed this process library to help you know which processes are worthwhile and others that slow system performance.

Furthermore, perhaps the quickest and most straight forward method to detect malware is through a running process analysis.

Process Library

  
PC Pitstop Libraries > Process Library > acachsrv.exe

Click here to run our free scan and see if your computer's processes are safe.


acachsrv.exe (Activ Client)

Percentage of recently scanned PC's with this process running: 0.03%
Average CPU use for this program: 0%
Average RAM for this program: 2 MB

PC Pitstop Analysis

acachsrv.exe - This process is a part of the ActivCard secure logon and electronic signature system.

Recommendation

Win Patrol

acachsrv.exe is required by third-party software or hardware and should not disabled.

PC Pitstop recommends WinPatrol Plus for monitoring all of the background activity on your PC. WinPatrol Plus provides a easy to understand descriptions of over 15,000 processes and programs.


Identification

In addition to the file name, acachsrv.exe, the following version information is used to identify the file. If the file does not match this information, it may be a different file. To ensure the file is absolutely correct, run a free and comprehensive scan.

Vendor contains:Activ
Product contains:Activ
File name contains:\Activ

To view version information with Windows Explorer, right-click the file and click Properties, Version.

MD5 Hashes

MD5 hashes is the way that computers can define the uniqueness of a file. Anti malware vendors frequently use this technique to detect and clean malware. It is common for a program to have multiple MD5 hashes as the developers create newer versions of the program. For the program called acachsrv.exe, we have detected 8 different MD5 hashes. Click on a hash to research the hash in Google.
MD5 Report Summary
Program NameMD5 Count
acachsrv.exe8
#MD5Size
10x28794cad5b482fcded46959e9194f22190112 bytes
20xeed831ae9d56467d72c97497b8f663ff90112 bytes
30x68db31fd0fcffffb64e2d113561836d381920 bytes
40x2a856011a7ae4e04b9671a309a05252674240 bytes
50x6e5c799eda8dd75f031205cba5ca6a69135168 bytes
60x516c93638a8ffb9cbf6b4e44efa1e843122880 bytes
70xb08edb751763df665391197eba9c3a34139264 bytes
80x8095935a67f48d8271ba019791842b37139264 bytes

PC Pitstop Database Comparisons

Every week, we update our information about the running programs identified during the previous week's testing. acachsrv.exe (Activ Client) has been seen on 0.03% of systems tested at PC Pitstop. As a point of comparison, it is rare for a particular malicious program (virus or spyware) to be seen on more than one or two percent of all systems tested. The average RAM memory usage for this process was 2 MB. The average CPU load for this program was 0%.

Vendor or Distributor's Web Site

http://www.actividentity.com/

Detailed Description and/or Removal Instructions

http://fileinfo.prevx.com/adware/qq07e056521664-acac3310247/acachsrv.exe.html

Important note: A file name alone may not be enough for positive identification. PC Pitstop's Overdrive tests and spyware scan use information such as the company name, product name, or install directory. If you are unable to identify a file, ask about it in our forums after running our full tests.