Programmatically Modifying An Execute SQL Task In A Package

I am making some changes to a tracking SP that I'm using in about 100 SSIS packages. I don't want to go into each package and add the additional parameter (A "?") and map a variable to some ordinal position. I'd like to do this programmatically.

I have some expirence in validing variables and manipulating connection objects in packages though a utility that I wrote. However, I cannot find any guidance on How to create/edit Execute SQL Tasks via code in the package. I would like to do something like this..





Code Snippet
private Microsoft.SqlServer.Dts.Runtime.Application app = new Microsoft.SqlServer.Dts.Runtime.Application();
Package p = app.LoadPackage(DTSPackage, null);
p.Executables["My Execute SQL Task"]






However, the Executables returns an Executable object that is a DtsObject. Do I have to add a reference to the task and cast this executable to that type? Any help is appreciated.

Thanks
Scott