I have win2k3. Exchange2k3. Going to https://exchangeserver/exchange gives you OWA just fine (after windows dialog style authentication). However, I found in 'exchweb/bin/auth/owalogon.asp' that I would like to use. When I try, I get 'HTTP 500' error. Turning off 'nice errors' just gives me an 'unspecified error'. The root web is not set up for SSL. The exchweb and exchange sub webs ARE set up for SSL. Thanks. Tony