Controling document properties in word vba?

I will be trying to generate a group of userforms giving the selection of croping and editing document properties when they have not really been improved.I possess this:

Open public a Seeing that String
Open public b When String
Open public Prop Seeing that DocumentProperty

Subscription Check()

In the event that ActiveDocument.BuiltInDocumentProperties = “Document Title” Then

your = “Title”
b = “‘Document Title'”
Prop = ActiveDocument.BuiltInDocumentProperties
Load TitleForm ‘Name involving userform
TitleForm.Show

Ending If

If you see where My organization is going with this.But there are problems using the variable Brace.Any ideas

The assistance file around 2007 will be atrocious, I’m sure that the Prop variable must be a string rather than DocumentProperty.