This process is essential to TSplus and is responsible for launching the assigned application and process to end users. If you believe it is corrupted I recommend you to reinstall the latest version of TSplus and reboot.
Make also sure that your security software is not preventing the use of TSplus.
You will need to set an exclusion rule in your antivirus on the following path :
C:\Program Files (86)\TSPlus and C:\wsession
On client side the exclusion is to be set the following path :