Most antivirus programs identify winnet.exe as malware—e.g. Kaspersky identifies it as not-a-virus:AdWare.Win32.CommonName.f, and Symantec identifies it as Adware.CommonName.
The free file information forum can help you find out how to remove it. If you have additional information about this file, please leave a comment or a suggestion for other users.
The process known as Generic Host Process for Win32 Services or Winnet appears to belong to software CommonName or Microsoft® Windows (version 2000 Operating System) by CommonName or Microsoft (www.microsoft.com).
Description: Winnet.exe is not essential for Windows and will often cause problems. The file winnet.exe is located in a subfolder of "C:\Program Files".
Known file sizes on Windows 10/8/7/XP are 65,536 bytes (57% of all occurrences), 86,016 bytes or 57,344 bytes.
The program has no visible window. The software starts when Windows starts (see Registry key: MACHINE\Run, MACHINE\RunServices). It is not a Windows core file. The winnet.exe file is a file with no information about its developer. The process listens for or sends data on open ports to a LAN or the Internet. Therefore the technical security rating is 71% dangerous.
Recommended: Identify winnet.exe related errors
If winnet.exe is located in the C:\Windows\System32 folder, the security rating is 68% dangerous. The file size is 29,696 bytes. The program is not visible. The file is located in the Windows folder, but it is not a Windows core file. Winnet.exe is not a Windows core file. The software uses ports to connect to or from a LAN or the Internet. Winnet.exe is able to monitor applications.
External information from Paul Collins:
There are different files with the same name:
Important: You should check the winnet.exe process on your PC to see if it is a threat. If Generic Host Process has changed your browser's search engine and start page, you can recover your browser's default settings as follows:Reset default browser settings for Internet-Explorer ▾
The following programs have also been shown useful for a deeper analysis: Security Task Manager examines the active winnet process on your computer and clearly tells you what it is doing. Malwarebytes' well-known anti-malware tool tells you if the winnet.exe on your computer displays annoying ads, slowing it down. This type of unwanted adware program is not considered by some antivirus software to be a virus and is therefore not marked for cleanup.
A clean and tidy computer is the key requirement for avoiding PC trouble. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic 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 resmon 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 DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.