BizTalk configuration error: Failed to connect to the SQL database 'SSODB'

Sometimes when configuring a fresh installation of BizTalk Server, the following error might appear during the configuration of the Enterprise SSO:

Failed to connect to the SQL database 'SSODB' on SQL Server ''. (SSO) Additional information: (0x80131700) (Win32)

Most interesting is that the error is due to a failure to connect when the configuration is meant to create the database in question.

I found a solution through this blogpost which while it is for Windows Vista and a bit different, still has the same solution as for the above problem. By some reason the Enterprise SSO is not correctly installed and by registering the SQL module and run the configuration tool again, it will work:

1. Start a Visual Studio command prompt.
2. run regasm "c:\Program Files\Common Files\Enterprise Single Sign-On\SSOSQL.dll"
3. Run the BizTalk Server configuration tool again