System Variables

[#1]

Are there any variables that can be used to

     a. Determine the server/client hostname in the script - I need it to return the name of the server

     b. Determine if the script is being executed by Publisher or not

I want to execute some additional script on one particular server and don't want to have to create more than one load script.

Same if script is being executed by publisher via an automated task

[tresB]

For hostname: ComputerName()

For Publisher check: I am not aware of.