Very nice article. I have also had a similar request for our user community. The biggest issue we face is the implementation of a user interface that is simplistic enough for the uers of our reports. We have around 20 varied reports and each have up to eight optional parameters to choose from.

One thing I have noticed is that if you have an error on the parameters its not fun to try and clear it up so the subscription will run again. I can run, as a test, a single subscription a dozen times without changing the parameters and can count on it failing at least 20% of the time due to a parameter issue. It's extremely frustrating.

If you post any further tweaks to the code I would love to see them.

Once again this is the best article I have found on this particular subject.