Hi Basis Folks
1. Just restart the system and then try
2. In windows OS firewall & UAC disabled?
3. Kindly refer the SAP Note 877795 - Problems with sapstartsrv Question no 60
And Trex Installation & configuration you can refer the SCN link(In windows / Linux installation & configuration are same)
http://scn.sap.com/docs/DOC-43539
Regards
SS