IJ> Mystic BBS:                                                              
 IJ> ----------
 IJ>   Assuming c:\doormud is your DoorMUD directory, and c:\mystic is your
 IJ> Mystic directory, use a command line of:
 IJ>     c:\doormud\dmud32d.exe -n %3 -d c:\mystic\temp%3
 IJ> 
 IJ>   Set the menu command type to "D3  Door with DOOR32.SYS".

Their own documentation doesn't work, so it can be confusing.

If you have doormud installed in c:\doormud then you would do:

Command: D3 (Execute Door32 Program)
   Data: c:\doormud\dmud32d -n %N -d %Pdoor32.sys

This assumes you're using the 32-bit version.

The %N is replaced by the node number, and %P is replaced by the directory
where the drop files are located (in this case door32.sys).

--- Mystic BBS v1.12 A47 2020/09/12 (Windows/64)