"The delivery extension for this subscription could not be loaded" when using SSRS
OK, so we upgraded our server farm and put on the latest "stuff" (SSRS, SQL Server etc.) and the engineers gave me two servers to play with - SQL01 & SQL02. The idea being that we used high availability to help keep the factory running. We employed a contractor to load up and configure everything. At this point I wasn't involved. My involvement was to move all the reports and subscriptions from the old servers to the new ones once the servers had been configured. All went swimmingly, until I actually started to fire off the subscriptions to test them. Randomly (like 5 out of 10) I got the error in the title. I would edit the failing subscription and/or change the schedule time and it would work. I finally got around to moving 81 subscriptions for the same report (all slightly different parameters going to about 6 different engineers). I press the "go" button and every single one failed. Let's cut out the long story about how I went through about