ShareName would be the Drive Letter. Example FMS/F:/MyProjectFolder/filename
But using a function to calculate the file path to a location found on all systems mac or windows might be better such as:
Get ( DocumentsPath ) & "YourFileNameHere.PDF"
Get ( DesktopPath ) & "yourFileNameHere.PDF"
or possibly if you only need this file long enough to email it as an attachment:
Get ( TemporaryPath ) & "yourFileNameHere.PDF"
But these would be expressions to evaluate and set to a $Path Variable.
See this thread for an example script that saves to a PDF using such a $path variable: Found Sets to PDF with unique file names
And if you want to explore other possibilities for a calculated file path, container fields and the script steps that use them, see: Exploring the use of a $Path Variable in Scripts
Thanks for the input people. Your suggestions have led me to a solution.
However I have found that shareName is not always the "Drive Letter". In Windows XP, right click the system drive (typically C:) and select "Properties. Then select the "Sharing" tab. Under "Network sharing and security" you will find the true "Share Name". In my case "Drive-C"
I was keeping to the basics. It is usually just a Drive letter, but that is why FM calls it ShareName, because it can be different.