Unprotect ThinkTank  Version 1.001

 1. Diskcopy the original disk to another floppy or copy the
    files to a hard disk.

 2. Rename TANK.EXE, type  RENAME  TANK.EXE TANK.XXX

 3. Rename INSTALL.EXE,  type  RENAME INSTALL.EXE INSTALL.XXX

 4. Type  DEBUG TANK.XXX  and press ENTER

 5. At the - prompt, type  R  . Look for the value in the DS register
    (left-hand column of the second line of the R display).


 6. Add 1000 to that DS value. i.e. if the R display showed DS=0D5F
    then you will use 1D5F. I will refer to this value later as xxxx.
    Add 2000 to the original DS value (i.e.if DS=0D5F, it is now 2D5F).
    I will refer to this later as yyyy.

 7. Check that your version is the same. Type the following:
 
      U  xxxx:91F9  and press ENTER

    You should see  JZ  91FE on the first line of the display. If so, this
    patch should work.

 8. Type  E yyyy:319  90 90         Enter
 9. Type  E yyyy:31C  B8 00 00 90   Enter
10. Type  E xxxx:91F9 EB 03         Enter
11. Type  E xxxx:9212 EB 03         Enter

12. To save these changes, now type  W
 
13. Type Q  to exit DEBUG.

14. Rename TANK back to it's original name   RENAME TANK.XXX TANK.EXE

15. At DOS, type  DEBUG INSTALL.XXX

16. Check the version to make sure this will work. Type 

    U 2D01  and press Enter.  You should see  JZ  2D06 on the first line.

17. If ok, then type  E 2D01  EB 03   Enter
18. Type   E 2D1A  EB 03   Enter
19. Type   E 50D9  90 90   Enter
20. Type   E 50DC  B8 00 00 90  Enter

21. To save the changes, type  W

22. To quit DEBUG, type  Q

23. Rename INSTALL back to original name   RENAME INSTALL.XXX INSTALL.EXE

That's it. The original floppy is no longer needed. you may copy the
TANK files to a hard disk, network or other floppy with normal DOS
commands.
07/18/84
                                                                           other floppy with normal DOS
commands.
07/18/84
                                                                          