JET****.tmp files - What are they?

  • Thread starter Thread starter Dave Gillingham
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Dave Gillingham

I'm running Win XP Pro with security through AVG antivirus, Spybot, AdAware, and
Kerio firewall. Recently I have noticed 22 files in my temp directory, of the
form JET****.tmp (eg JET8A3E.tmp etc). If I try to delete them Windows tells me
they are in use, but I'm not aware of any application running. My security
applications don't flag anything.

Are they a problem? If so, how do I fix it? If they're benign, what are they?
Help, please.
Dave Gillingham
 
Dave said:
I'm running Win XP Pro with security through AVG antivirus, Spybot,
AdAware, and
Kerio firewall. Recently I have noticed 22 files in my temp
directory, of the
form JET****.tmp (eg JET8A3E.tmp etc). If I try to delete them
Windows tells me
they are in use, but I'm not aware of any application running. My
security applications don't flag anything.
Click to expand...

They are files connected with the Microsoft JET Engine, used for
databases.

http://en.wikipedia.org/wiki/Microsoft_Jet_Database_Engine

So don't worry about it.

Malke
 
Dave said:
I'm running Win XP Pro with security through AVG antivirus, Spybot, AdAware, and
Kerio firewall. Recently I have noticed 22 files in my temp directory, of the
form JET****.tmp (eg JET8A3E.tmp etc). If I try to delete them Windows tells me
they are in use, but I'm not aware of any application running. My security
applications don't flag anything.
Click to expand...

Take a look at Process Explorer from Sysinternals. It will tell you what
program is holding those files open.

http://www.sysinternals.com/
 
Mon, 06 Feb 2006 18:33:00 -0800 from Jerry Baker
Take a look at Process Explorer from Sysinternals. It will tell you what
program is holding those files open.

http://www.sysinternals.com/
Click to expand...

I like Process Explorer, but how do you get that information from it?
None of the menu selections seemed relevant when I checked them just
now. And the help index contains nothing beginning with "open" or
"file".
 
Stan said:
I like Process Explorer, but how do you get that information from it?
None of the menu selections seemed relevant when I checked them just
now. And the help index contains nothing beginning with "open" or
"file".
Click to expand...

You're looking for file handles. A file handle is the way a program
"handles" a file that it has open. Search for "jet" under file handles
and see what turns up.
 
Tue, 07 Feb 2006 09:52:57 -0800 from Jerry Baker
You're looking for file handles. A file handle is the way a program
"handles" a file that it has open. Search for "jet" under file handles
and see what turns up.
Click to expand...

Thanks for the reply. I must be missing something obvious, but I
can't find how to display a list of file handles. Can you point out
what I'm missing? (Is this perhaps a recent feature? I've got release
9.25.)
 
Stan said:
Thanks for the reply. I must be missing something obvious, but I
can't find how to display a list of file handles. Can you point out
what I'm missing? (Is this perhaps a recent feature? I've got release
9.25.)
Click to expand...

There is no list. Go to the menu bar at the top of the program and
select Find -> Find Handle. Type in "jet" without the quotes and search.
Find the file in question in the list of results.
 
Tue, 07 Feb 2006 23:38:46 -0800 from Jerry Baker
There is no list. Go to the menu bar at the top of the program and
select Find -> Find Handle. Type in "jet" without the quotes and search.
Find the file in question in the list of results.
Click to expand...

Thanks! That, I understand.

I'll drop the author a note suggesting an update to the help file.
He's amazingly responsive, considering this is free software.

And just to review, for anyone who doesn't have it -- Process
Explorer is at
http://www.sysinternals.com/ProcessesAndThreadsUtilities.html
along with a lot of other useful utilities including Autoruns.
 
Thank you both for your response. Turns out, when I recently installed Roxio
Easy Media Creator 8, it unilaterally concluded I wanted some part of it running
at all times. The temp files are owned by RoxMediaDB.exe. What is particularly
annoying is that I use PC Magazine's Startup Cop for Win XP to keep tabs on that
sort of thing - and it doesn't show in the list!

I'm running Win XP Pro with security through AVG antivirus, Spybot, AdAware, and
Kerio firewall. Recently I have noticed 22 files in my temp directory, of the
form JET****.tmp (eg JET8A3E.tmp etc). If I try to delete them Windows tells me
they are in use, but I'm not aware of any application running. My security
applications don't flag anything.

Are they a problem? If so, how do I fix it? If they're benign, what are they?
Help, please.
Dave Gillingham
Click to expand...
Dave Gillingham
 
Nearly 15 years later and this problem still does exist... I wouldn't have even known about it unless examining with FolderChangesView... it is an inefficient design to constantly be creating these zero byte files and deleting them. I sent out some feedback to Microsoft Feedback but don't expect much.
I can't find out what Windows application does this but it makes me consider changing my Windows Temp directory to a regular hard-drive instead of my M2 to avoid unnecessary I/O strain...

1599325878016.png
 
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