Is there a semantic wiki engine that runs on the microsoft stack (.NET, SQL Server)?

I am looking for a semantic wiki engine that runs on .net and sql server. Anyone know of any? If so, is it any good?

If not, next best alternative?

Edit Sematic media wiki can be hooked up to SQL Server (in theory).

A note about database systems support: MySQL and Postgres (i.e. PostgreSQL) should work fully. Oracle support works only on MediaWiki 1.16 or greater. To connect to MSSQL (i.e. SQLServer), you may need to either install Microsoft drivers for PHP for SQL Server开发者_如何转开发 (which works only in Windows), or use the MSSQLBackCompat extension. If you use the extension, you will need to specify "mssqlold" (not "mssql") as the database type.

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Have you taken a look at SCrewTurn Wiki (http://www.screwturn.eu/)? I believe this can even be downloaded and configured through the Microsoft Web Platform Installer.