What is Lavasoft.SearchProtect.WinService.exe?

The genuine Lavasoft.SearchProtect.WinService.exe file is a software component of Web Companion by Lavasoft.
"Lavasoft.SearchProtect.WinService.exe" is a continually running background Windows service that installs in "C:\Program Files\Lavasoft\Web Companion\Application" as part of Lavasoft's Web Companion, which warns the user when URL's entered fail real-time cloud-based scans. In Task Manager it is "SPWindowsService" but is "IE Search Set" under Windows Services, suggesting use with Internet Explorer. Its startup can be delayed. Stopping or uninstalling it may cripple Web Companion. Four Dynamic Link Libraries (DLL's) beginning with "Lavasoft.SearchProtect.-", (.Logger, .Business, .Repositories, and .WcfService), extend ".WinService", often a means to reduce what is loaded into memory. 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.

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 Lavasoft.SearchProtect.WinService.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 Lavasoft.SearchProtect.WinService.exe related errors

Lavasoft.SearchProtect.WinService.exe file information

The process known as SPWindowsService belongs to software Web Companion or Ad-Aware Web Companion or SPWindowsService by Lavasoft (

Description: Lavasoft.SearchProtect.WinService.exe is not essential for Windows and will often cause problems. The file Lavasoft.SearchProtect.WinService.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 17,168 bytes (45% of all occurrences), 13,312 bytes and 4 more variants. 
The program has no visible window. The Lavasoft.SearchProtect.WinService.exe file is not a Windows core file. The file is a Verisign signed file. Lavasoft.SearchProtect.WinService.exe appears to be a compressed file. Therefore the technical security rating is 37% dangerous, however you should also read the user reviews.

Uninstalling this variant: The software publisher Lavasoft provides an uninstall program (Control Panel->Software->Web Companion or Ad-Aware Web Companion).

Recommended: Identify Lavasoft.SearchProtect.WinService.exe related errors

Important: Some malware camouflages itself as Lavasoft.SearchProtect.WinService.exe. Therefore, you should check the Lavasoft.SearchProtect.WinService.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

Dieses Programm hat sich selbständig auf mein Com. geladen. Verdacht: ein Spionage Programm. Der Rechner arbeitet obwohl Er im Ruhestand ist. Das ist sehr verdächtig !
  Bianca Müller  

Summary: Average user rating of Lavasoft.SearchProtect.WinService.exe: based on 1 vote with 1 user comment. One user suspects danger.

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Best practices for resolving Lavasoft issues

A clean and tidy computer is the key requirement for avoiding problems with Lavasoft. 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 Lavasoft.SearchProtect.WinService.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

Lavasoft.SearchProtect.WinService.exe [all]