Ive got a number of existing customers who have sited that are well deeloped in asp.net, who may benefit from being moved across to dnn (Mainly from a content management perspective.)

Some of these would be straight forward ports, but others have additional business modules, or other datbases attached to them. How would you recommend I go about (minimal stress) migrating them.

would you recommend keeping the business applicaiton and database seperate, on another server, or is it straight forwards enough to add a second database to the hosted dnn database server, and run my application alongside .NetNuke ? -  for new customers I'd look at adding my own modules that do the business logic, but I dont want to go through the pain of recreating existing (working) logic.

As an ammendment to that, one of the sites has its own user login / registration system, that then gives access to the business application. Is there any way of using the DNN registration / login system to control access to my own applications?

Cheers

Sb