This is REG-ME file of PCE'97:

     rEG-mE­ þ pCE '97 oFFiCiAL! þ tRAIL-wARE!
  cODEd bY [eGIS! '97]. oNLY kEYmAKER aCCEPTaBLE.
             !! nO sHIT pATCHER !!

New TR v1.97 can go through it. I have not make
keymaker or regmachine like this, So if you done
it use TR can get trail in PCE'97, Please tell
me how do you do it.

hints: TR's 't'(f8) command doesnot swap screen
       memory, so if you run

                mov ax,es:bx    ;es=b800

       and press <F8>, you may get error!
       Use 'g <next address>' or 'pp' instead.