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  • Last modified Jun 21, 2015 8:55:43 PM
     MD5 checksum 984352e06c7d9121e181847c3d137410
        Mime type Zip archive data

1987 October 20

  • Text / Guides and how-tos
2 items in the archive
  • HELI.DAT
  • HELI.DOC
[+] Configuration Copy text
This procedure will enable you to unprotect Sierra On-Line's 3D HELICOPTER game. The procedure is based on an unprotect procedure for KING'S QUEST III, by an unknown author. There are two files included in this ARC package: 1. HELI.DOC - This file 2. HELI.DAT - Supplementary file needed during DEBUG session. The procedure is relatively simple: 1) Put a blank, formatted diskette in drive B, and the HELICOPTER Disk #1 in drive A, then at the A> prompt, COPY *.* B:. Then put Disk #1 away - you won't need it anymore! 2) Load DEBUG, making sure both HELI.COM (on the backup disk) and HELI.DAT (from this package) are both in the current path or on the default drive. 3) Use DEBUG to patch HELI.COM. -N HELI.COM -L -R (Record value of CX register) -N HELI.DAT -L 141 -E 366 XXXX:0366 E8.90 7D.90 03.90 -N HELI.COM -R CX CX 0080 :???? (Enter value of CX you recorded) -W -Q 4) That's all there is to it. HELICOPTER is now unprotected.
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