I created an SSIS dtsx package for a few days ago and deployed/imported it into an SSIS MSDB package store on one of my servers (SQL2005 SP2).
Then I created a job and scheduled it to run on a specific time each morning. I mistakenly stated an incorrect time, so I deleted the schedule for the package and created a new one.
After that, the package ran two times each morning, both on the first incorrectly specified time, and then at the new time.
I went through all package schedules on all my servers and I didn't find any reference to the incorrect schedule. For two days, it ran on those two times.
I then deleted the package from SSIS package store, and it stopped running, of course.
Yesterday, I imported the same package again into the same SSIS server, but I didn't create any job or schedule for it, just imported the package.
This morning it ran once at this originally incorrect time, but I didn't schedule anything!!!
So, where is this schedule coming from and how can I stop it from running?