Seperate revocation behaviour (OCSP, CRL) for various CAs

Hi

I currently try to implement CA specific certificate revocation checks (as described in: http://www.adobe.com/devnet-docs/acrobatetk/tools/DigSig/planning.html #certificate-revocation-checks).

I want to implement for some specific CAs that only OCSP queries are done to validate user certificates. For this reason I playing around with the following registry key.

But I don't understand is the usage of the

cRevocationChecker

The documentation tell that this registry entry should consist of:

     "An array of text entries (t0-tn) containing the name of a registered provider."

How is this implemented, could you please provide a sample how these registry keys are used and what they should contain?

Thanks for your support.