How to Create reminder on SharePoint 2010 Calendar “without workflow”?

Question

I already made up a reminder, based on calculate column and workflow, but I think this is not the strategical way!!Loading workflows for thousands of members caused my server get heavy. so, I am looking for a rational and logic solution to solve the reminder problem same as out look.(the Alert didn't solve problem for exact time)
if any one has any idea I would appreciate a lot! Thanks Sh.A

Answer 1

For 2010 it is the usual solution if you want a no .Net coding solution.

So there is your answer, if you run into perfomance problem; go .Net

For completeness:

In SP2013 you can access the Workflow Services from the Client and defer a whole lot of logic to Views:

Obtain workflow ID by title using CSOM?