We want to use InputScript files located on a server. So instead of  process="c:\inputscript.txt" we specified process="\\inputscript.txt". But this doesn't work either. Can we specify the path without the drive name "c:"? 

If you work with GuiXT scripts on a server, you can specify the InputScript without any folder name, e.g.

... process="mm01_save.txt"

Or, if you created a subdirectory "inps" within your script directory that contains the input scripts:

... process="inps\mm01_save.txt"

If the InputScript is in a different folder, please specify the full path, e.g.

... process="\\server3\GuiXT\inps\mm01_save.txt"