What is cvslock.exe?

The genuine cvslock.exe file is a software component of CVS by March Hare Software.
Cvslock.exe is executable file that is part of the Configuration Manager for CVS, a software revision control and documentation system built on the client-server model. This is not a critical Windows component and should be removed if known to cause problems. CVS stands for Concurrent Versions System. The software was made to keep track of the progress of work including all changes made to a group of files. This provides several developers who may be not in the same physical location to collaborate and easily work together. The software was initially released on November 19, 1990. March Hare is an Australian company that provide consulting services to organisations developing with Uniface, a programming language. The company undertook the development of CVS in 2004 by sponsoring ongoing work in the field. The company also provided professional support, installation and training services.

CVSLock stands for Concurrent Versions System Lock

The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the cvslock.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.

Click to Run a Free Scan for cvslock.exe related errors

Cvslock.exe file information

Windows Task Manager with cvslock
Cvslock.exe process in Windows Task Manager

The process known as CVSNT or CVSNT or CIB_TortoiseCVS_TortoiseCVS_1.8.26_XP or CVSNT belongs to software CVSNT or CIB_TortoiseCVS_TortoiseCVS_1.8.26_XP by March Hare Software ( or CVSNT or TortoiseCVS.

Description: Cvslock.exe is not essential for the Windows OS and causes relatively few problems. The cvslock.exe file is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 58,368 bytes (52% of all occurrences), 48,640 bytes, 58,880 bytes or 56,832 bytes. 
The program has no file description. The program is not visible. Cvslock.exe is not a Windows system file. The application uses ports to connect to or from a LAN or the Internet. You can uninstall this program in the Control Panel. Therefore the technical security rating is 62% dangerous, however you should also read the user reviews.

Uninstalling this variant: If you have any problems with cvslock.exe, you may also uninstall the associated program (Start > Control Panel > Uninstall a Program > CVSNT or CIB_TortoiseCVS_TortoiseCVS_1.8.26_XP), consult’s Customer Service for advice or search for an update on the vendor’s website.

Recommended: Identify cvslock.exe related errors

If cvslock.exe is located in a subfolder of C:\, the security rating is 64% dangerous. The file size is 74,752 bytes. The process has no file description. The program is not visible. The file is not a Windows core file. The program listens for or sends data on open ports to a LAN or the Internet.

Important: Some malware camouflages itself as cvslock.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the cvslock.exe process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

Used to run CVS on NT service Machines
CVS Client
    (further information)
necessary for connecting to CVS

Summary: Average user rating of cvslock.exe: based on 4 votes with 3 user comments. 4 users think cvslock.exe is essential for Windows or an installed application.

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Best practices for resolving cvslock issues

A clean and tidy computer is the key requirement for avoiding problems with cvslock. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the 6resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the cvslock.exe process on your computer, the following programs have proven to be helpful: ASecurity Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

cvslock.exe [all]