>>I am trying to use a class, that has, as one of its required parameters a UNC Path to a file. is 'C:\DTS\DTS__SomeFile.dts' the correct UNC path for a file on the C drive in the DTS folder.
>
>No, I think. The correct UNC path must be something like "\\MyWorkstation\C:\DTS\DTS__SomeFile.dts"


Nope. A UNC is formed in the template:

\\<Server Name>\<Share Name>

Server name and share name cannot contain either : or \ characters. It's strongly suggested that the Server Name (AKA Machine Name) and Share Name use no more than 15 characters with no delimiter characters, and if Win16 compatibility is an issue, 8 characters.