Experts, I am running into an issue with a set of my SSIS packages and need help on this. one of my SSIS package has a script component which refers a custom dll. This was developed using SQL BIDS (2008) and was then upgraded to SQL Server 2012 version using the upgrade wizard in the dev. environment. Everything works as expected in the upgraded version of the package. However, when this is deployed in prod, the SSIS package execution fails. But, when I open the package manually, re-build the script component and then try executing the package, the execution completes with out any issues. Any thoughts on how this can be sorted out ?