What step is it failing on?
The last step. The InstallAccessRT.bat file exists and works when I run it from a PC.
I am not married to this approach.. I have tried several and I am not making decent progress on it.
If you map the network share as the "System" user by using the "System User" to run the command and supply the network credentials for the network share it will from my experience work better;
net use #DRIVE#: #SHARE# /user:#USER# #PASSWORD# /PERSISTENT:YES
I have attached a sample of a script that will prompt for the values just change the variables from prompt to constant and fill them out with the correct values to use or just replicate the lines if it works better for you. Note that if the network credentials are domain based use [domain]\[user] for the user name if not use [server name]\[user].
Also do need to run the batch file with this method, you can either copy the ART setup files locally with XCOPY or Robocopy and install it with following command; Setup.exe /QN
Or if it is the single un-extracted ART EXE file installer you can copy to a local path and then execute it with the following switches; /quiet /passive /norestart