If you're using DTS, you don't need linked servers.  The linked servers are used for openquery and direct access SQL statements. 

I don't know about the reboot, but it can't...

The data sources need to be set up on the server when run as a job.  When running from the designer, the job processes on the local machine (where the...

DTS can read INI files. You can read something from an INI file into a global variable and then use the global variable in a stored proc call. ...