VS 2005 Can't Find Where Object Name/type Is Being Set/changed

This starts with an object being added to a collection with: CommonArgs.Add(ObjName, Me)

ObjName is a string, call it "Obj1". Me is an instance of a class inheriting from UserControl. Call it "Class1".

Now, to check the value assigned to Obj1, the vendor has the

Dim Obj As Object = CommonArgs(ObjName)
Dim Info As System.Reflection.FieldInfo = Obj.GetType().GetField(ObjName, System.Reflection.BindingFlags.Public Or System.Reflection.BindingFlags.Instance Or System.Reflection.BindingFlags.IgnoreCase)
Obj is the Class1 object added to CommonArgs.

When I run this in my test app, Info is Nothing-but when I run it in the vendor's app Info is an Enumerated type. Why?

I've found a little more info, but it's still a mystery to me-and so far it appears to be a mystery to everybody else, too.

First, I noticed that I didn't mention that the Collection is a Hashtable. I don't know if that would make a difference, but it is something I forgot to mention.

Second, there's a 'regular' variable named ObjName that contains the value being returned by Info. My understanding is that there's no connection between these, e.g. Dim X as Integer = 1 doesn't change the type or value of the object of CommonArgs("X"). But that's what appears to be happening.

Any suggestion?