Freeze-Strategy-Make-Unchangeable-but-Cloneable

Agreed.. a " safety lock" system would be good with clone or export C# code for backup and testing alterations would be crucial

How to freeze a strategy in visual Studio?

This is not about Visual Studio, it's about adding the new feature to WL7. A "freeze" in VS can be accomplished by storing code revisions in a version control system - from locallly run Subversion to Github.

QUOTE:
How to freeze a strategy in visual Studio?

I make a file copy. I also use version control system.

Thanks.