There is a new Microsoft support article “TCP settings that can impact BizTalk Server” released a couple of days ago that combines previously released information from several sources on what TCP registry settings could impact a BizTalk system:
http://support.microsoft.com/kb/970406/en-us
Three existing support articles have also been reviewed and updated to include BizTalk 2009:
You experience blocking, deadlock conditions, or other SQL Server issues when you try to connect to the BizTalkMsgBoxDb database in BizTalk Server
http://support.microsoft.com/kb/917845/en-us
Description of the SQL Server Agent jobs in BizTalk Server – Includes the new Rules_Database_Cleanup_BizTalkRuleEngineDb job introduced in BizTalk 2009
http://support.microsoft.com/kb/919776/en-us
You receive a "TDDS failed to read from source database." error message in the application log of a computer that is running BizTalk Server
http://support.microsoft.com/kb/841334/en-us
There’s also a new hotfix for BizTalk 2004 and 2006 R2 regarding rules engine purging:
FIX: The rules engine tables are not being purged when you use BizTalk Server
http://support.microsoft.com/kb/958211/en-us
–Thiago
