I did the following:
1 – loaded a .BTM file with a JPSOFT language set
2 – pressed <ESC> and choose extension setup.
3 – I have the following in the Default Help File field, inc. the double quotes:
4 – I have sent my meconfig.db as a PM to you.
5 – this was a freash install and the standard ME help (e.g. CMAC) works ok.