Extend.dat file

[Duncan Findlay]

I have had the following problem with MS Outlook. The program has worked
quite well except that when I click the Outlook icon, a pop up says there is
a problem with C:\windows\aplication data\microsoft\outlook\extend.dat. It
indicates I must do something with the permissions folder. If I just click
"cancel" on the pop up, Outlook opens up with no problem.

When I view the directory C:\windows\aplication data\microsoft\outlook, I
find two files there, "extend.dat" and "extend.old.dat". I presume, that
when I open Outlook and I click "Cancel" on the pop up it evokes the correct
".dat" file. I recall that earlier I had a problem with Outlook and a
technical advisor suggested I create an old ".dat" file because I was having
a problem then, however, I cannot recall the nature of the problem.

I would like to get rid of the annoying pop up. Can you advise what I should
do? Is it as simple as making a copy of the "extend.old.dat" file in another
directory for safekeeping, and then deleting the "extend.old.dat" file from
"C:\windows\aplication data\microsoft\outlook". If the "extend.dat" file
left in that directory works OK, I presume I can then delete the
"extend.old.dat" file.

Thanks,

Duncan

 

[neo [mvp outlook]]

delete (or move to another directory if stricken by paranoia) them both.
outside of that and not knowing what operating system you are working with,
you just need to ensure that you have read, write, modify, and exclusive
access to the path specified in the dialog.

 

[Brian Tillman]

not knowing what operating system you are
working with, you just need to ensure that you have read, write,
modify, and exclusive access to the path specified in the dialog.

Since the file is under C:\Windows\Application Data, it's either Windows 98
or ME.

 

[Duncan Findlay]

Hi:

I am using Windows ME. Do you then suggest I delete both the "extend.dat"
and "extend.old.dat" files (or move them to another directory - I am
slightly paranoid about losing my files). When I start up MS Outlook, does
it not need an "extend.dat" file in order to function? I am not sure what
you mean by ensuring that I have "read, write, modify, and exclusive access
to the path specified in the dialog."

Thanks

Duncan

 

[neo [mvp outlook]]

Correct, Outlook doesn't need those two files because it will create a new
copy of it from information in the registry

 

[Duncan Findlay]

Thanks, Neo:

It works fine now. After deleting these files, I restarted Outlook and it
generated a new "extend.dat" file in the directory.

Duncan