To remove ATS from your system, if you have installed it as a service, first use the Services Applet to stop the service, and then uninstall the service with the following command (which you can execute from the Start..Run dialog):
C:\vm\miame\bin\atsdsrv –u
(replace the path if necessary to match the location where your ATSDSRV.EXE resides.) This will remove it from the Registry.
Next (or if you only installed it as an application) you can remove the three files associated with ATS (using Explorer): ATSD.EXE, ATSDSRV.EXE and ATSDSRV.INI. (They don’t take up much space though, so there is not much to be gained by erasing them.)