Script Component And Variable!!

Hi All,

I have developed a simple package utilizing script component and variable. What I am trying to do is declare a variable in the parent package that can be change at run time to either 1 or 0. If 1 I want the package to succeed and branch off to run some child packages and if 0, then branch the other way and run another child package. In ether way, I want to be able to load one of the two child packages and not both.

I I declare a variable in my parent package like IsExist, int32 with default 0.

Then I have this code thanks partly to  Jamie Thomson in " SSIS: Writing to a variable from a script task"

Public Sub Main()

'

' Add your code here

'

Dim t As Integer

Dim vars As Variables

Dts.VariableDispenser.LockOneForWrite("IsExists", vars)

t = CInt((Dts.Variables("IsExists").Value))

'Dts.Variables(IsExists).Value = t

If t >= 1 Then

vars.Unlock()

Dts.TaskResult = Dts.Results.Success

Else

Dts.TaskResult = Dts.Results.Failure

End If

End Sub

End Class

I also place the variable name in the ReadWriteVariables in the script component.

The problem now is it is always failing. It stopped at the script task and fail. This is not what I want. I want the package to execute another task upon failure. Anyone knows what I am doing wrong?