My company is slowley but surely moving away from Novell. We got rid of Identity Manager and File and Print over a year ago. We still have Secure Logon and GroupWise left in the enviroment. Exchange is inevitable. Is there any Microsoft based Securelogon alternatives that anyone knows about?

I was reading upon Microsofts Host Intergration Server but could not pinpoint exactly what it does for password caching or SSO.