You should try the InfopathDev forum at http://www.infopathdev.com if you
have not already.
The Database Accelerator includes an Active Directory web service as well as
sample forms which have assignment and workflow. You can check it out at
http://www.qdabra.com

Signature
Thanks
Clay Fox
Qdabra Software
http://www.qdabra.com
InfoPathDev.Com
The Largest InfoPath Forum in the World
http://www.infopathdev.com
> I have been trying to develop an InfoPath solution where I retrieve a users
> certificate from Active Directory and manually sign the form after asking for
[quoted text clipped - 5 lines]
> SignedDataBlock class or Signature class. Has anyone looked into this or
> tried it in 2007 that can point me to the right direction. Much appreciated.