This is a very simple windows service that will make a HTTP request of a specified url at defined intervals.  The reason I wrote it was to keep my client sites in server memory so they performed better. 

Currently the error handling is basic and there aren't any email notifications, but if there is uptake on the module these are things I would consider for the next release.

Any feedback or ideas would be appreciated.

It's taken a while, but an update has been released for the AuthIntegrator module.  The most significant changes are that "localhost" is not a valid url and the redirection back to external applications for DNN 4.5+ sites has been improved.

If anyone has any ideas on where to take the module from here I'd be intereted in hearing from you.  I have toyed with creating a version of the IFrame module that retrieve secured content, but am not sure I want to fork the current module and have to support it.