What is LavasoftTcpService.exe?

The genuine LavasoftTcpService.exe file is a software component of Web Companion by Lavasoft.
"LavasoftTCPService.Exe" is the main executable of Lavasoft's TCP Service that starts with Windows and always runs. It uses additional code in the dynamic link library "LavasoftTCPService.dll" and on 64-bit machines a second 64-bit library named "LavasoftTCPService64.dll" in "C:\Windows\System32" complements the 32-bit library in "C:\Windows\SysWoW64". The TCP Service enables Web Companion to detect what URLs the browser is submitting by intercepting requests in the Transmission Control Protocol stack level and submitting these to cloud-based Malicious URL (MURL) detection. When WebCompanion is uninstalled it often leaves the DLL behind which keeps some other companies' software from running. Consult Lavasoft Support for this problem. Lavasoft pioneered anti-spyware commercial applications in 1999 when "spyware" was a new term and they continue to lead the field, committed to make millions of users' PC's and the Internet safer through their free anti-malware program and partnering with other security providers to keep up with over half a million new threats and variants created daily.

LavasoftTCPService stands for Lavasoft TCP Intercept Service

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 LavasoftTcpService.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 LavasoftTcpService.exe related errors

LavasoftTcpService.exe file information

The process known as LavasoftTcpService belongs to software Lavasoft Software Canada or LavasoftTcpService by Lavasoft (

Description: LavasoftTcpService.exe is not essential for the Windows OS and causes relatively few problems. LavasoftTcpService.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 2,751,760 bytes (81% of all occurrences), 2,751,792 bytes and 9 more variants. 
It is a file with no information about its developer. The program is not visible. LavasoftTcpService.exe is not a Windows core file. It is a Verisign signed file. The application listens for or sends data on open ports to a LAN or the Internet. LavasoftTcpService.exe is able to connect to the Internet and monitor applications. Therefore the technical security rating is 59% dangerous.

Uninstalling this variant: If you encounter difficulties with LavasoftTcpService.exe, you can safely remove the program using the uninstall program of LavasoftTcpService or Lavasoft Software Canada (Control Panel ⇒ Uninstall a Program) or use the software publisher's support site [1][2].

Recommended: Identify LavasoftTcpService.exe related errors

Important: Some malware camouflages itself as LavasoftTcpService.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the LavasoftTcpService.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.


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Best practices for resolving LavasoftTcpService issues

A clean and tidy computer is the key requirement for avoiding problems with LavasoftTcpService. 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 LavasoftTcpService.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

LavasoftTcpService.exe [all]