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UNPROTEC.LZH
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THEXDER.TXT
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1988-04-08
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2KB
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48 lines
This procedure will enable you to unprotect Sierra On-Line's
THEXDER game. The resulting patch to the Thexder.com file loader
will allow you to run the program from your hard disk without the
program diskette in your floppy drive.
The following procedure is based on an unprotect scheme by an
unknown author distributed in the Public Domain under the name
SIERRA.ARC or SIERRAF.ARC. The following procedure requires
DEBUG.COM, a back-up copy of Disk 1, SIERRA.DAT and no previous DEBUG
experience.
1. Copy all the files from the original Disk 1 to a blank,
formated diskette (for floppy users), or, install the THEXDER
program on your hard disk. Put away the original Disk 1 - you
won't need it anymore!!
2. Make sure that DEBUG and the SIERRA.DAT file, included with
this text, are in the current directory with ThEXDER.COM, or in
the current path.
3. Load Debug and patch as follows:
>Debug Thexder.com
-R * record the value of CX register *
-N Sierra.dat
-L 141
-E 34F
xxxx:034F E8.90 * the initial response *
xxxx:0350 B2.90 03.90 * here is: *
* xxxx:034F E8. *
* enter 90, then hit *
* spacebar. Repeat *
* until lines appears *
* as above) *
-N Thexder.com
-R CX
CX 0080
:???? (Enter value of CX recorded above)
-W
-Q
That's it!! You can now run THEXDER without the Disk 1 in your
Floppy drive. ENJOY!!!!
David Morton