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1991-09-11
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PRODUCT : Paradox NUMBER : 489
VERSION : All
OS : PC-DOS
DATE : March 22, 1989 PAGE : 1/2
TITLE : Deleting the Password in PARADOX.SOM
The network installation program for Paradox2 requires you to
enter a password, which you must know if you later use NUPDATE to
change your configuration. In an emergency, a user can bypass
this protection scheme by using DEBUG to erase the existing
password. To do this, just change the byte at addres 18e to
binary zeroes. (The password is an eight-byte null-terminated
string, so zeroing out one byte does the job.)
For users who are not conversant with DEBUG, here are more
detailed instructions:
1. In the directory containing Paradox2 on the network, type
DEBUG PARADOX.SOM to enter the DEBUG program.
2. At the hyphen, which is DEBUG's prompt, type: d 180 and
press <ENTER>. This should display eight lines of 16
characters each, in both hexadecimal and ASCII format.
The first line will be labeled "xxxx:0180", where "xxxx"
is any value. The character we want to change is the next
to last one in the first line.
3. At the hyphen prompt, type: e 18e and press <ENTER>.
(Note that "180" and "18e" sound alike. It is essential
that you edit byte 18e, not 180!.) DEBUG will display the
address to be edited, the current value and a period, then
wait for you to supply a new value.
4. Type: 00 (two zeroes) and press <ENTER>. (The zeroes are
hexadecimal characters; together, they represent one ASCII
character - to be specific, a null character, to tell
Paradox that there's no password.
5. Check that the change was made correctly by repeating step
2. The changed character will now appear as "00". If
something has gone wrong, type: q at the prompt to cancel
the change, then start again with step 1.
6. If everything looks okay, type: w at the prompt to write
the modified version of PARADOX2.SOM to disk, then (at the
next prompt), type: q to exit DEBUG.
F:\USR\RICK>debug paradox2.som <- STEP 1
PRODUCT : Paradox NUMBER : 489
VERSION : 2.xx
OS : PC-DOS
DATE : March 22, 1989 PAGE : 2/2
TITLE : Deleting the Password in PARADOX.SOM
F:\USR\RICK>\bin\masm\symdeb paradox2.som
Microsoft (R) Symbolic Debug Utility Version 4.00
Copyright (C) Microsoft Corp 1984, 1985. All rights reserved.
This is byte 18E, the first
Processor is [80286] character of the password.
-d 180 <- STEP 2 |
21DF:0180 00 00 00 00 00 00 00 00-00 00 00 00 00 00 57 66 ..............Wf
21DF:0190 59 61 00 00 00 00 00 00-00 01 00 00 00 00 00 00 Ya .............
21DF:01A0 00 00 CE CE CD CC CB CA-C0 CB C7 C6 C4 00 00 00 ..NNMLKJ@KGFD...
21DF:01B0 00 00 00 00 00 00 CE CE-CD CC CB C9 C1 CB C6 C6 ......NNMLKIAKFF
21DF:01C0 C4 00 00 00 00 00 00 00-00 00 CE CE CD CC CB C1 D.........NNMLKA
21DF:01D0 C9 CB BE C6 BF 00 00 00-00 00 00 00 00 00 CE CE IK>F?.........NN
21DF:01E0 CD CC CA C1 C0 CB C7 C6-BF 00 00 00 00 00 00 00 MLJA@KGF?.......
21DF:01F0 00 00 CE CE CD CC C9 C1-C1 CB C6 C6 BF 00 00 00 ..NNMLIAAKFF?...
-e 18e <- STEP 3
21DF:018E 57.00 <- STEP 4 Note that this byte is now a "00"
-d 180 <- STEP 5 |
21DF:0180 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 66 ...............f
21DF:0190 59 61 00 00 00 00 00 00-00 01 00 00 00 00 00 00 Ya..............
21DF:01A0 00 00 CE CE CD CC CB CA-C0 CB C7 C6 C4 00 00 00 ..NNMLKJ@KGFD...
21DF:01B0 00 00 00 00 00 00 CE CE-CD CC CB C9 C1 CB C6 C6 ......NNMLKIAKFF
21DF:01C0 C4 00 00 00 00 00 00 00-00 00 CE CE CD CC CB C1 D.........NNMLKA
21DF:01D0 C9 CB BE C6 BF 00 00 00-00 00 00 00 00 00 CE CE IK>F?.........NN
21DF:01E0 CD CC CA C1 C0 CB C7 C6-BF 00 00 00 00 00 00 00 MLJA@KGF?.......
21DF:01F0 00 00 CE CE CD CC C9 C1-C1 CB C6 C6 BF 00 00 00 ..NNMLIAAKFF?...
Writing 0489 bytes -> STEP 6
-q -> STEP 6
F:\USR\RICK>