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I need to perform some events (sending emails, etc.) based on time. What is the best way to accomplish this in ASP.net in a hosted (medium trust) environment? ex: Send email every day at 4:00pm. ex: Send email after 15min of login. ex: Send email after 10 hrs of last change to status. The triggering logic can be complex on some of the requirements, so I need to build a flexible system to handle these sorts of events. I am stuck on the core activation method for this code. Here are the options I have so far... 1) Timer in Global.asax + Simple - Is not reliable, the web application can unload in IIS and the event will not fire. ? Possibly use external pinger service to keep app alive (reliable?) 2) Windows Service to perform action - Slip/Maintain separate code. - Can not install in hosted environment (shared/cloud hosting) 3) Windows Service to call Web App (calls webservice or runs page) + All code in web app - Can not install in hosted environment. 4) SQL Server Job to call a Webservice (via CLR) ? Haven't looked at this.. possible? reliable in hosted environment? 5) SQL Service Broker Timer to add message to call WebService (via CLR) ? Haven't looked at this.. possible? reliable in hosted environment? 6) Windows Workflow? ? No Idea.. does this technology have anything for this? This seems like a common enough problem, are there third party tools to handle this?

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