An easier alternative is to add shell-specific commands such as SET_EMS=NO, SET_EMS=YES, SETMEM=MEMsize,SET_CYCLES=400 etc. Then write a per game batch file. ----8<----------------- Proof of concept: ie. Look for the declaration (in \src\SHELL\shell_cmds.cpp) void DOS_Shell::CMD_SET(char * args) { [ …

With regard to "Packed file is corrupt" error, There is a Checksum in the executable header that does not match.. by default nowadays these are set to ignore (0). Several things - either dosbox doesnt know how to deal with the Checksum correctly, or you have a virus, in the executable or the …

Exactly what I was after, "the activation key", from there the sourcecode (And the "H" key explain the rest really well) thanks QBIX 😁 [Note that the ARROW Up/Down keys dont work in debug if NUM lock is on]

Please could someone explain the basics for the debugger; I have built Dosbox 0.60CVS ( Win32 ) with PDCurses, and Heavy Debug, the debug window displays file-access data until you press any key in the window, which then disables the window (?!).