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- INSTRUCTIONS
- FOR
- UNPROTECTING VP-PLANNER VER 1.1
-
-
- VP-PLANNER is one of those annoying programs which is both copy
- protected and delivered without a backup. Instead of forking out
- 10 bucks for the backup, I found it easier and more enjoyable to
- circumvent the copy protection. If you are comfortable copying
- disks and using DOS's DEBUG program then you should have no
- trouble with this simple procedure.
-
- This procedure was applied to a version of VP-PLANNER in which
- the VP.COM file was dated 4/14/86. If that is your version, then
- you are golden.
-
-
- STEP 1:
-
- Copy all of the working files from the VP-PLANNER
- master to a working diskette (or a subdirectory on
- your hard disk).
-
- STEP 2:
-
- Load the DOS DEBUG program and issue the following
- commands (do not enter the comments below. just enter
- everything shown in upper case.)
-
-
- COMMAND COMMENT
- _______ _______
-
- a>DEBUG assumes A is default drive.
- -N B:VP.COM assumes VPP files on drive B.
- -L load vp.com into memory.
- -U CS:6647
- xxxx:6647 mov bx,ffff this should be first
- . instruction displayed.
- . If not, STOP!!!!
- -A CS:6647
- xxxx:6647 MOV BX,0 replace previous mov.
- - enter empty line.
- -U CS:6650
- xxxx:6650 int 10 first instruction?
- . no? STOP!
- .
- -A CS:6650
- xxxx:6650 NOP
- xxxx:6651 NOP
- xxxx:6652 don't forget the blank line
- -U CS:665C
- xxxx:665c int 10 first instruction?
- . no? STOP!
- .
-
-
-
-
-
-
-
-
-
- -A CS:665C
- xxxx:665c NOP
- xxxx:665d NOP
- xxxx:665e don't forget the blank line
- -W rewrite the file.
- -Q return to DOS.
-
-
- Believe it or not, VP-PLANNER is now fully unprotected.
-