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Subject:Re: netdump and lockdump
Date:Sat, 27 May 2017 08:43:14 -0400
From:"Steven Green" <>
yeah, it's actually pdoxwin running, but that shouldn't matter.. I figured 
that changing the file with notepad would break it.. the "dirlock" result 
was a surprise.. it's definitely not a dirlock :-)

this stupid old laptop, which is about to be replaced, thinks there's an SD 
card in F:, and I can't delete, uninstall, etc.. that's why I tried changing 
it.. I'll send a copy of the files to your email.. if you can change F to C, 
or run them as F on your machine, that would be great


Steven Green
Myrtle Beach, South Carolina, USA

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"Michael Kennedy"  wrote in message 


It might take me a few shots to recall some useful details...

Probably irrelevant, but are you using PDoxDOS or some version of
PDoxWin? Or both  ;-)

On 26/05/2017 21:01, Steven Green wrote:
> client has a growing lock file, on an on-going basis.. the reasons are 
> understandable and for the moment, unavoidable.. when everyone gets out of 
> paradox, it goes away, so it's not damaged

This was a very major issue, some decades ago. And now I don't recall
the causes/solutions. Perhaps Locks are being placed, but not released.

> all the machines are 64-bit, so lockdump and netdump will NOT run on their 
> machines (16 bit)
> copied both to my system.. they seem to be making a good net file, I can 
> always read it with netdump just fine, it's always 13030 bytes, the data 
> matches what the app says, etc

Sounds perfect.

> here's the issue, Mike :-)  long story, but I can't use the same drive 
> letter on my machine.. at the command prompt, lockdump throws an 
> Abort/Retry/Fail cuz it can't find the net file on the correct drive.. so 
> I edit the lock file, substitute a different drive letter, and save the 
> file.. then lockdump says "This is a Directory Lock"

Maybe try SUBST to assign the required letter - if that letter is free.

When you change the Drive-letter, make sure you use a "hex" editor - a
standard editor would likely mess up a hex-editing session. Also, the
drive-letter might be held in multiple places inside a hex file, perhaps
as a letter a-z, A-Z, and/or as a number (0=A, or 1=A, or 0=C, or 1=C, etc).

When investigating this issue way-back-when, I wrote some code to
analyse the lock-files. The only detail I recall now is that the code
searched for pairs (Lock and Unlock) within the file, and then
highlighted the unmatched/unreleased locks/entries. I'm sure I have that
code somewhere, if it might help (I might even have previously sent it
to you/others!).

Or, if you want, send me the Lockfile, and I'll check if I can access it

The Directory-Lock message seems wrong - that was/is an option to place
a lock on a Directory, and thereby avoid having to place/release all the
individual record/block locks thereafter.

   - Mike 

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