Quote from et_user:
If you are using stand-alone TWS, then folder:
C:\Jts\dciijtglt
needs to be saved as back-up. That's what I do once every few days. recently, when I lost my tws pages, I was able to recover by copying the folder back.
If you are using web version of TWS, then
C:\IBJts\dciijtglt is the folder.
fwiw the "dciijtglt" portion of the folder name is an encrypted version of your login id. If you have more than 1 account, you will have multiple folders that need to be backed up