The stunnel.exe process is the SecureShell Tunnel (stunnel) program that was developed by RS4U Software Design. This process file is under the SSH Tunnel (Stunnel or Secure Tunnel) software and is a product stunnel 4.47 for x86-pc-mingw32-gnu. SSH Tunnel is a program for tunneling and encryption, which supports SSH1 and SSH2. Its port forwarding system allows remote forwarding and local address allocations. This Windows file may be found in the C:\Program Files\ssh tunnel folder and on Windows 7/XP, its size ranges from 90,112 to 1,448,110 bytes. When found elsewhere, this file could be a worm, virus, spyware, or Trojan. This file is not digitally signed and is also not a core file for Windows. It connects to the Internet or LAN through ports, and remains invisible. An executable file, this may be seen operating as the stunnel.exe process in Task Manager. It has also been created under the file name %ProgramFiles%\stunnel\stunnel.exe.

Most non-system processes that are running can be stopped because they are not involved in running your operating system. stunnel.exe. is used by SSH Tunnel, If you shut down stunnel.exe, it will likely start again at a later time either after you restart your computer or after an application start. To stop stunnel.exe, permanently you need to uninstall the application that runs this process which in this case is SSH Tunnel, from your system.

After uninstalling applications it is a good idea to scan you Windows registry for any left over traces of applications. Registry Reviver by ReviverSoft is a great tool for doing this.

The ReviverSoft experts have not yet reviewed stunnel.exe

A process usually a part of an installed application such as SSH Tunnel, or your operating system that is responsible for running in functions of that application. Some application require that they have processes running all the time so they can do things such as check for updates or notify you when you get an instant message. Some poorly written applications have many processes that run that may not be required and take up valuable processing power within your computer.

We have not received any complaint about this process having higher than normal impact on PC performance. If you have had bad experiences with it please let us know in a comment below and we will investigate it further.

The first thing you should do if stunnel.exe. is causing errors on your computer is to run a Windows registry scan with Registry Reviver If you are still seeing errors after this you should uninstall the program that stunnel.exe, belongs to, in this case SSH Tunnel