I am using the Shell.Application object, which allows me to script creation of a zip file. 
But in order for this to work, I need to full path of the zip file.  File.zip doesn't work.  I need c:\the\full\path\file.zip, even if the script is running within the same directory where the file is found. 
How can I get the full path of a file in VBScript?
Something like the %~fI expansion in the cmd.exe shell.