Word Application NOT Disposing in VB.NET

In vb.net I am opening (800+) Word docs. But when I am finished I am setting to nothing the Word Applciation and in the Task Manager it is still there. Why?

Code:

---

Dim wrdApp As New Word.Application
'etc.......
Dim wrdDoc As New Word.Document
wrdDoc = wrdApp.Documents.Open(fiTemp.FullName, , True)
'etc.......
wrdDoc.Close(False)
wrdDoc = Nothing

wrdApp = Nothing

---

i have never used Word.Application, but is there a method to close the app object you created and then set to Nothing?

there is no Close for this object