Hi Carabama,
I believe we’ve assisted you resolve this error now with the following response:
To prevent TDS from being launched, please rename or delete the file tds.exe from the MT4 installation folder. Once you have done this Tickstory should use its own launcher.
There should be no problem selecting an installation folder other than C:. You should be able to browse to that location using the “select” button.
Regards.