If you want to uninstall TSX RemoteApp, please do the following :
Open "Programs and Features" by clicking the Start-Button /Control Panel / Programs and Features, and then click "Uninstall a program".
Select "Thinstuff TSX Remote Desktop Connection" to uninstall the RDP-Client - right click and select "Uninstall"
Select "Thinstuff TSX RemoteApp Server..." to uninstall the server-part - right click and select "Uninstall"
Uninstallation is finished, reboot not required