BUG: Jetpack Overwrites Existing TEMP.MDB File

• Microsoft Windows NT Server versions 3.5 and 3.51
• Microsoft Windows NT Server version 4.0

SYMPTOMS

You had a file named TEMP.MDB in either your WINS or DHCP directory, but after running JETPACK.EXE in the same directory, the TEMP.MDB file is missing.

CAUSE

When you run the program JETPACK.EXE to compact a WINS or DHCP database, it actually uses two temporary files to do the work. The first one is a swapfile and is hardcoded as TEMP.MDB; the second is the file name that you specify and will ultimately replace the database file you are compacting (WINS.MDB or DHCP.MDB).

In the case that JETPACK fails, it leaves a TEMP.MDB in the directory. This file is redundant and does not contain user data. You can delete it manually, otherwise JETPACK will silently overwrite it and delete it on the next successful compaction. This is the reason that there is no warning about overwriting the file.

When you enter the Jetpack command parameters, it does not check to see if a file name of TEMP.MDB already exists, it just opens a file of that name with over-write privileges. When Jetpack is finished, it automatically deletes the TEMP.MDB file.

Also, you cannot specify the file name TEMP.MDB in your own command parameters. In this case, Jetpack will return an error because it has already opened its own TEMP.MDB and cannot open a duplicate one (specified in your command line). Therefore, use any other file name for the temp file, as in this example:

   JETPACK.EXE WINS.MDB TMP.MDB

STATUS

This behavior is by design.