In the spirit of a recent patch to unprotect LOTUS 1-2-3, I discovered
the same logic can be applied to unprotect MEMORY/SHIFT.

1. Rename MS.EXE MS.XYZ
2. DEBUG MS.XYZ
3. type  U 1565
4. you should see    INT 21   at that address
5. type  E 1565 90 90
   type  E 1567 90 90
6. type  W
7. type  Q
8. Rename MS.XYZ MS.EXE

Finally, make sure command.com resides on the disk where MEMORY/
SHIFT  is initiated.

***************************** MEMORY-SHIFT Ver. 2.1 ***************

How to Unprotect MEMORY-SHIFT, Version 2.1

Prepare a fresh diskette via:
A>FORMAT b:/s/v

With Memory Shift Master in drive A: and your fresh diskette in B:
A>COPY A:*.*,B:

Replace the Memory Shift Master in drive A: with your DOS diskette
A>RENAME B:MS.EXE,B:MS.XXX
A>DEBUG B:MS.XXX
-s 0 l 8000 e8 22 00 72     <- look for this string in memory
xxxx:7F68                   <- one occurance should be found
-e 7F68
xxxx:7F68  E8.eb  22.08 <CR>
-e 80ec
xxxx:80EC  AD.e9  AB.9e  AD.fe <CR>
-e 7f8d
xxxx:7F8D  06.b8  1E.00  B8.01
xxxx:7F90  40.ab  00.b8  8E.f0  D8.ff  BF.01  3E.d8  00.ab  8A.b8
xxxx:7F98  95.d0  04.40  00.89  80.c1  E2.b8  03.b8  8E.03  46.e9
xxxx:7FA0  00.54  33.01
-w
Writing 8000 bytes
-q

A>RENAME B:MS.XXX,B:MS.EXE

That is all there is to it!
December 28, 1983