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Software Vault: The Gold Collection
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Software Vault - The Gold Collection (American Databankers) (1993).ISO
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cdr11
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pdox693.zip
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READ.ME
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1993-05-14
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51 lines
To all those using LockDump.exe, a couple of notes.
1) LockDump is designed to work with ALL .lck files that Paradox and
Paradox related products produce. This include PDOXUSRS.LCK, PARADOX.LCK
and TABLENAME.LCK. If you find a .lck file that LockDump does not
like, please email it to me.
2) LockDump tries to be as smart as possible when deciding what input
file to open. If you do not supply an input file name, LockDump will
attempt to open PDOXUSRS.LCK then PARADOX.LCK. You do not need to
fully specify the input file, LOCKDUMP F: will open the lock file from
the directory associated with the F drive.
3) In Paradox 4.X, the user name associated with a lock is NOT stored in
the .lck file. For this reason, LockDump will attempt to open the .net
file to acquire the user name. If the .net file cannot be opened, or
the user name is not within the net file, the lock is reported a being
owned by UNKNOWN.
4) In Paradox 4.X lock files there is this beast know as the Group Lock.
This lock actually contains the data from the linking key fields of the
detail table in a 'to many' relationship. To decode this field
information, LockDump attempts to open the associated table and read the
header. When successful, LockDump will list the field names and values,
when unsuccessful, LockDump will dump the data in hexadecimal format.
5) Paradox uses DOS level locks (Interrupt 21, Function 5C) to be sure that
two users do not write to the same portion of a .lck file at the same
time. LockDump does NOT use this technique to insure that it gets clean
reads from the .lck or .net file. This should not matter in a practical
environment, but if there is demand, I will upgrade LockDump.
6) Since LockDump does not support the DOS level locks, it cannot validate
the legitimacy of a lock by testing the .net file for a live connection.
Again, if there is demand, I will upgrade LockDump to add this feature.
7) If you haven't already done so, get your hands on NetDump.com. It is
available from CIS in Lib 10 as NetDmp.zip. It does support the DOS level
locks and will provide a real time list of valid users in the .net file.
8) Any comments or suggestions will be greatly appreciated. Please email
them to me, David R. Faulkner, (DrF), on CIS at 76116,3513, or on MCI at
510-5579.
9) If you find LockDump at all interesting, please please please take the
time to send me a $10 registration fee. I'm very poor, and writing
programs like this takes a lot of unbillable hours. Fees should be mailed
to David R. Faulkner, PO Box 434, Kula, HI, 96790.
Enjoy!