GetVariableWizardAction - Read values from an ini-type file
This bean allows you to retrieve a variable value from any type of ini-type file by allowing the installshield builder to specify the filename, a description that the user sees, a variable name, and a variable delimiter in it's properties list. If the name is found, the value is stored in memory for general access. If it is not found, this bean sets it's active status to false. Any other bean
who wants to use this value must first test the active status of this bean or they will get back an empty string.
