File Must Not Exist Job
Both of the Job Types: File Must Exist and File Must Not Exist work, relative to the machine that the RoCKNet Agent is running on.
e.g. If you wanted to make sure the file called, "somefile.txt" on the D drive, of the server FILESVR1, in the folder D:\Data\, did not exist, then you would do the following:
1) Make sure that there was a RoCKNet Agent installed and running on the server FILESVR1 (only required once per server).
2) Create a new, "File Must Not Exist" Job, within the RoCKNet Administrator, and assign it to the Agent FILESVR1 as shown below: