How do I crop an oversized PST file in Outlook?

Oversized PST and OST crop tool — Microsoft Support http://support.microsoft.com/?kbid=296088

. . . Outlook 2003, and newer, can create PST up to 20GB PST files, up from the previous limit of 2GB:

• The .pst file has a different format and folder size limit in Outlook 2007 and in Outlook 2003
• PST Size & formats — Wikipedia