use visual basic 6 to export to word2007

I used code below to type a text with desired font into word from vb6. it works fine when I use it to type English texts, but when I use it to type persian texts it just inserts text into word without the font. I really can't find the problem.

Code:

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Private wrdApp As Word.Application 'MS Word object
Private wrdDoc As Word.Document 'MS Word Document
Private wrdSelection As Word.Selection 'MS Word Selection

Private Sub Form_Load()

Set wrdApp = New Word.Application
wrdApp.Visible = True
Set wrdDoc = wrdApp.Documents.Add
wrdDoc.Select
Set wrdSelection = wrdApp.Selection

wrdSelection.ParagraphFormat.Alignment = WdParagraphAlignment.wdAlignParagraphCenter
wrdSelection.Font.Name = "Arial"
wrdSelection.Font.Size = 14
wrdSelection.Font.Bold = True
wrdSelection.TypeText "Something in English"

wrdApp.Selection.TypeParagraph

wrdSelection.ParagraphFormat.Alignment = WdParagraphAlignment.wdAlignParagraphRight
wrdSelection.Font.Name = "Tahoma"
wrdSelection.Font.Size = 24
wrdSelection.Font.Bold = False
wrdSelection.TypeText "Something in persian"

End Sub

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