*****************  UNPROTECT OVERHEAD EXPRESS VER. 1.0  *********************

To unprotect Overhead Express 1.0 you have to remove the "key disk" check
from three (3) programs.

The original code is the same in all three programs so I have only displayed
it once for you to verify versions.

The three copy-protected files are OE.EXE, OEPRINT.EXE. & OEEDIT.EXE.

Copy system disk files to a blank formatted disk.

A>ren oe.exe oe.xxx                        ; so Debug can write file
A>debug oe.xxx
-s 0 f000 cd 13                            ; search for INT 13 (disk check)
xxxx:23D7
xxxx:23EE
xxxx:240F
xxxx:2426
xxxx:8564
xxxx:857B
xxxx:859C
xxxx:85B3
-u 23d7
xxxx:23D7 CD13          INT     13        ; nop out this disk check
xxxx:23D9 B402          MOV     AH,02
xxxx:23DB B001          MOV     AL,01
xxxx:23DD 8B4E06        MOV     CX,[BP+06]
xxxx:23E0 B500          MOV     CH,00
xxxx:23E2 8B5604        MOV     DX,[BP+04]
xxxx:23E5 B600          MOV     DH,00
xxxx:23E7 8CD3          MOV     BX,SS
xxxx:23E9 8EC3          MOV     ES,BX
xxxx:23EB 8B5E08        MOV     BX,[BP+08]
xxxx:23EE CD13          INT     13        ; nop out this disk check
xxxx:23F0 7206          JB      23F8      ; nop out this jmp
xxxx:23F2 B80000        MOV     AX,0000
xxxx:23F5 EB0A          JMP     2401
-e 23d7
xxxx:23D7  CD.90                          ; this is same as first disk check
xxxx:23D8  13.90 
-e 23ee
xxxx:23EE  CD.90   13.90                  ; this is same as disk check 
xxxx:23F0  72.90   06.90                  ; followed by jmp
-e 240f
xxxx:240F  CD.90                          ; repeat same methodology
xxxx:2410  13.90                          ; for all three files.
-e 2426                                   ; unassembled code looks
xxxx:2426  CD.90   13.90                  ; the same in all three files.
xxxx:2428  72.90   06.90
-e 8564
xxxx:8564  CD.90   13.90
-e 857b
xxxx:857B  CD.90   13.90   72.90   06.90
-e 859c
xxxx:859C  CD.90   13.90
-e 85b3
xxxx:85B3  CD.90   13.90   72.90   06.90
-w
Writing 7680 bytes
-q
A>ren oe.xxx oe.exe
===========================================================================
A>ren oeprint.exe oeprint.xxx
A>debug oeprint.xxx
-s 0 f000 cd 13
xxxx:6513
xxxx:652A
xxxx:654B
xxxx:6562
-e 6513
xxxx:6513  CD.90   13.90
-e 652a
xxxx:652A  CD.90   13.90   72.90   06.90
-e 654b
xxxx:654B  CD.90   13.90
-e 6562
xxxx:6562  CD.90   13.90   72.90   06.90
-w
Writing B980 bytes
-q
A>ren oeprint.xxx oeprint.exe
===========================================================================
A>ren oeedit.exe oeedit.xxx
A>debug oeedit.xxx
-s 0 f000 cd 13
xxxx:B664
xxxx:B67B
xxxx:B69C
xxxx:B6B3
-e b664
xxxx:B664  CD.90   13.90
-e b67b
xxxx:B67B  CD.90   13.90   72.90   06.90
-e b69c
xxxx:B69C  CD.90   13.90
-e b6b3
xxxx:B6B3  CD.90   13.90   72.90   06.90
-w
Writing 14580 bytes
-q
A>ren oeedit.xxx oeedit.exe
===========================================================================

That's it.  All copy protection is removed and you may copy diskette with
standard DOS commands.
                                ---- The Blot
E CD13          INT