The following procedure can be used to remove the copy protection
used in Where in Time is Carmen Sandiego.


>ren carmen.exe carmen

>debug carmen

Microsoft (R) Symbolic Debug Utility  Version 4.00
Copyright (C) Microsoft Corp 1984, 1985.  All rights reserved.

Processor is [80286]
-u539			 ---- Don't go any further unless this matches ----

xxxx:0539 9AD239E107	 CALL	07E1:39D2
xxxx:053E B80900	 MOV	AX,0009
xxxx:0541 50		 PUSH	AX
xxxx:0542 9AEF42E107	 CALL	07E1:42EF
xxxx:0547 C7069E590100	 MOV	Word Ptr [599E],0001
xxxx:054D 833E2C4701	 CMP	Word Ptr [472C],+01
xxxx:0552 1BC0		 SBB	AX,AX
xxxx:0554 F7D8		 NEG	AX
-a 539

xxxx:0539 nop

xxxx:053A nop

xxxx:053B nop

xxxx:053C nop

xxxx:053D nop

xxxx:053E

-u ba5f

xxxx:BA5F 55		 PUSH	BP
xxxx:BA60 8BEC		 MOV	BP,SP
xxxx:BA62 06		 PUSH	ES
xxxx:BA63 1E		 PUSH	DS
xxxx:BA64 BF0700	 MOV	DI,0007
xxxx:BA67 B80602	 MOV	AX,0206
xxxx:BA6A BB00F8	 MOV	BX,F800
xxxx:BA6D 8EC3		 MOV	ES,BX
-a ba5f

xxxx:BA5F mov ax,1

xxxx:BA62 jmp badf

xxxx:BA64

-w

Writing 182CD bytes
-q

>ren carmen carmen.exe