When opening outlook a file called program is created in the C:

[Brian]

When I open Outlook 2000 it creates a file called program
in my C: directory. If I move files from my inbasket to
offline then I will notice the file size increases. The
file does not have an extension, although it can be opened
in notepad. I have tried deleting and renaming this file
but it recreates itself once Outlook is reopened. Does
anyone have any idea of what this file is or how I can
resolve this problem?

Thanks!