Before uninstall PasServer it is recommended to before stop the service/daemon. Run on Windows
To uninstall PasServer:
In MS-Windows from the Windows Panel Control, open the utility to add or remove programs and select PasServer to uninstall. 
Uninstall PasServer
but it is possible to directly run the program
<PasServerdir>/uninstall.exe
On LINUX, execute the program uninstall located in the directory:
<PasServerdir>/uninstall.
Note: If you have already used PasServer, some new files will have been created inside the PasServer directory. (logfiles and config)
The uninstaller will not delete these files. Probably, you will manually delete the PasServer directory after uninstall.