home *** CD-ROM | disk | FTP | other *** search
-
-
- HOW TO UNPROTECT "SpssPc" (tm)
- WITHOUT PROGRAM MODIFICATIONS
-
- If you wish to run "SpssPc" (ver. 1.1) from a hard disk, but
- are annoyed by the requirement for having the original disk 1 in
- drive A, then read on....
-
- 05/07/86 UNPROTECTING SPSS/PC+
-
-
- THIS UNPROTECT IS ONLY KNOWN TO WORK WITH THE VERSION OF SPSS/PC+
- RELEASED WITH THE FILE "SPSSPCC.COM (or SPSSPC.COM after
- installation) OF SIZE 16100 DATED 8-12-85 TIME 6:51p (as reported
- by a DIR command).
-
- WHEN YOU APPLY THESE CHANGES, YOU WILL NO LONGER NEED THE KEY DISKETTE.
-
-
- 1. MAKE A COPY OF SPSSPC(C).COM AND PUT AWAY THE ORIGINAL.
-
- USING YOUR COPIED VERSION OF SPSSPC(C).COM:
-
- 2. DEBUG SPSSPC(C).COM
-
- 3. R --- record the value in the CS register, say XXXX.
- Let ZZZZ = the value in the CX register plus 0100 (hex).
-
- 4. D CS:1018
- You should see the following string of bytes:
- C4 5E 1E 26 8A 27 ....
- If you do, proceed to step 6, otherwise,
-
- 5. S CS:0100 CS:ZZZZ C4 5E 1E 26 8A 27 If debug returns no address
- where this byte string is found, you have a different version and
- should just type "q" to get out of debug --- this will not work
- for you. If debug returns more than 1 address where found, you
- could try proceeding with step 5 trying each address
- XXXX:YYYY (ONE AT A TIME!!!). Can't promise anything, but who
- knows???
-
- 6. E XXXX:YYYY (where YYYY is 1018 if you got here from step 4 or
- YYYY is the value you got from step 5).
-
- 7. WHEN YOU SEE C4., TYPE A 90 AND A <CR>.
-
- YOU HAVE NOW UNPROTECTED SPSS/PC+ TO THE POINT WHERE IT NO LONGER
- NEEDS THE KEY DISKETTE!!!
-
- NOW, TO GET RID OF THOSE ANNOYING WARNINGS ABOUT DUPLICATION AND
- COPYRIGHTS:
-
- 8. F XXXX:2E6E XXXX:2E91 20
-
- 9. F XXXX:3AC6 XXXX:3AE7 20
-
- 10. F XXXX:3AFE XXXX:3B21 20
-
- 11. F XXXX:3B41 XXXX:3B54 20
-
- 12. F XXXX:3B78 XXXX:3BA2 20
-
- 13. F XXXX:3BC3 XXXX:3BD4 20
-
- 14. F XXXX:3BE3 XXXX:3C20 20
-
- 15. F XXXX:3C41 XXXX:3C54 20
-
- 16. W
-
- 17. Q
-
- THERE YOU GO...REPLACE THE ORIGINAL VERSION (KEEP THE ORIGINAL IN
- A SAFE PLACE!!!!) OF SPSSPC(C).COM WITH YOUR NEWLY DEBUGGED
- VERSION AND YOU SHOULD NO LONGER NEED THE KEY DISKETTE TO RUN SPSS/PC+.
-
- HAPPY COMPUTING.
-