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Jetpack

Published: April 17, 2012

Updated: April 17, 2012

Applies To: Windows 7, Windows Server 2008 R2

Compacts a Windows Internet Name Service (WINS) or Dynamic Host Configuration Protocol (DHCP) database. Microsoft recommends that you compact the WINS database whenever it approaches 30 MB. For examples of how this command can be used, see Examples.

JETPACK.EXE <database name> <temp database name>

 

Parameter Description

<database name>

Specifies the original database file.

<temp database name>

Specifies the temporary database file.

/?

Displays Help at the command prompt.

To compact the WINS database:

CD %SYSTEMROOT%\SYSTEM32\WINS
NET STOP WINS
JETPACK WINS.MDB TMP.MDB
NET START WINS

To compact the DHCP database:

CD %SYSTEMROOT%\SYSTEM32\DHCP
NET STOP DHCPSERVER
JETPACK DHCP.MDB TMP.MDB
NET START DHCPSERVER

In the examples above, Tmp.mdb is a temporary database that is used by Jetpack.exe. Wins.mdb is the WINS database. Dhcp.mdb is the DHCP database.

Jetpack.exe compacts the WINS or DHCP database by doing the following:

  1. Copies database information to a temporary database file called Tmp.mdb.

  2. Deletes the original database file, Wins.mdb or Dhcp.mdb.

  3. Renames the temporary database files to the original filename.

noteNote
During the compact process, Jetpack.exe creates a temporary file with the name that is specified by the temp database name parameter. The temporary file is removed when the compact process is complete. Make sure you do not have a file already existing in WINS or DHCP folder with the same name as the one specified in the temp database name parameter.

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