What I meant was that the CLR does not support continuations of the type that makes call/cc possible, which is required to implement scheme.

It seems that IronScheme (Scheme on CLR) haven't found a solution for this issue: http://ironscheme.codeplex.com/WorkItem/View.aspx?WorkItemId...

I may be wrong since I dont know F#, but I suspect continuations on F# is more limited than call/cc.