Today I held another crash-course in Extending MS CRM 3 with .NET. It is a very comressed version of the MOC (Microsoft Official Curriculum) course with the same name. The attendées were 4 very sharp CRM professionals from Cybernetics and Releye. If you are interested in attending this course please contact Informator at www.informator.se.
We were discussing the problems with kerberos double-hopp trust delegation when using a SQL RS on a different server than the CRM server. It dawned on my however that a similar problem might acctually arise if you choose to host your custom aspx-files on a separate server from the CRM-server. I am no expert at this kerberos stuff but would find it quite possible that you might get this problem. I havn't tested this, so treat it as a hunch. If anyone has confirmation or the opposite, please comment this posting.
In short, to avoid potential problems, make sure your website for you custom websites are hosted on the same server as CRM. (please note that it is not supported to use the same website as CRM).
CRM and SharePoint Consultant