This script is needed for replacement of BizTalk Servers running BizTalk Server 2006 Standard Edition after they encounter an irrecoverable failure.
Read the BizTalk Server product documentation on Disaster Recovery for BizTalk servers for more details on usage of the script.
Download here: http://www.microsoft.com/downloads/details.aspx?FamilyID=e298d070-2504-4645-a651-4a2e52b2fcdb&DisplayLang=en