Administration > Environment Variables > APTWCF — Specifying the Path Name of the Preferences File
  
APTWCF — Specifying the Path Name of the Preferences File
This variable specifies the path and file name for the preferences file where Arbortext Editor stores all settings specified in the Tools > Preferences dialog box.
Example
set APTWCF=d:\myprefs\arbortext.wcf
By default, Arbortext Editor creates arbortext.wcf. Do not set the APTWCF environment variable to find an epicprefs.acl or an epic.wcf file. Those files are in different formats.
Refer to Startup command files for information on how Arbortext Editor automatically stores the preferences file.