After developing a custom Web Service to be hosted in SharePoint (based on this HowTo article on MSDN ) and deploying it on a testing environment, I got some entries in the EventLog over there, stating: " Unable to connect publishing custom string...
Getting the ModalPopupExtender from the Ajax Control Toolkit to work (decently) in SharePoint was not exactly a walk in the park. With a default SharePoint installation, the modal popup is partly positioned 'outside' of the page (you only see...