What is a good Business Rule Engine(BRE) for .Net?

Question

Do you know of a good business rule engine for .Net? I know Drools.Net is one but it seems to me that its inactive. There is also NXBRE but seems to me that it is not solid enough. Does any body here have a good one? Please suggest.

Update 1,

I did a research based on the suggestions below. Seems to me that Windows Workflow Foundation is enough to what I wanted to do. Since I'm using WCF it would be a good match. But I'm still haven't decided yet.

Best regards,

Solution 1

You can use the rules engine that is part of the Windows Workflow Foundation.

• It is a forward chaining rule engine only
• It is free
• You can enable rule execution tracing

etc.

Solution 2

I have used CSLA.net its free, but he writes a book that might help you understand whats going on

http://www.lhotka.net/cslanet/

Solution 3

Check out Biztalk's BRE. If your willing to invest a small amount of money into the solution then Biztalk is an option.

http://www.microsoft.com/biztalk/en/us/business-rule-framework.aspx

Comments

[kmote]

Update: Acumen is no longer in business.

[Yinda Yin]

CSLA.NET is not a rules engine, AFAIU