I'm pulling my hair out over this. I'm trying to pass the value of a package variable to a batch command script running in a SSIS Execute Process Task. I thought I'd found the answer in this article, on how to set the Task's Arguments property using an Expression, rather than hard coding an Arguments value. But when I set use this expression for the Arguments:

Arguments | "(DT_STR, 4, 1252) @[User::RowCnt]",

I don't get the value for the RowCnt variable (eg, 15), I get this literal value (DT_STR, 4, 1252) @[User::RowCnt] passed into my command script.

Any ideas what I'm doing wrong here?