There are two ways:
1. Use the Set values tab in the job step. The property path needs to be \Package.Variables[i]myvariable[/i].Value and then enter the new parameter value in the field on the right
2. Use the command line tab to run the package, which allows you to set the parameters for the dtexec utility. The switch format is /set \package.variables[i]myvariable[/i].Value;myvalue
You can see more information on the dtexec utility here
tom
Life: it twists and turns like a twisty turny thing
