MERGE.EXE by J. Flynn, copyright 1995, -Freeware-

	MERGE is a DPMI utility for combining Doom or Heretic
	level maps in different wads into a single level map. DPMI
	means there is no wad size limitation from DOS memory,
	only from the finite nature of the blockmap. The program
	supplies its own DPMI interface if you're not already using
	one (like Windows, or some QEMM configurations).

	This utility supersedes the previous Beta release as
	DMMERG.ZIP. Severe limitations have been removed as well
	as a spurious requirement to BSP the wads before and after
	merging.

	Syntax:

	MERGE [/9] [/P] wadname1[.wad] wadname2[.wad]

	The resulting wad, always written to MERGED.WAD is stripped
	of all resources but the graphic level resources needed by
	an editor. The first wad determines the resulting level or
	map number. Up to 999 tags may be used. Use of the /9 switch
	prevents 99 and 999 tags from being renumbered. 666 tags will
	never be renumbered. Use of /P will keep any player starts
	found in the second wad (they are removed by default). 
	Deathmatch starts are never removed.

	The syntax is available online any time by running merge
	without parameters.

	To use the utility to combine a section of one wad, SRC.WAD
	with another wad DST.WAD do the following. First make a new
	copy of SRC in SRCCPY.WAD or some name of your choice. Then
	edit SRCCPY and delete everything but the section you want 
	to move into the DST wad. You may wish to bracket a thing
	with some temporary vertices to help align it later. Now use
	the line MERGE DST SRCCPY to create a MERGED.WAD containing
	both DST and the desired section of SRC. Edit MERGED.WAD and
	drag the new vertices and things of the SRCCPY section to
	where you want them, and fix the imperfections due to the
	deletion of things around it and joining the two maps if and
	as desired. After you are happy and pass consistency checks, 
	exit, and then copy MERGED.WAD over DST.WAD. You may wish to
	write a batch file to help automate the process.

	Thanks to Richard Sharp for input on the alpha and beta 
	versions, and several other suggestions I may yet implement
	someday <g>. Also credit for the impetus to finish the DPMI
	version goes to Dr Sleep who kindly encouraged me to do so...