Dim IllApp As New Illustrator.Application
Dim IllDoc As Illustrator.Document
Dim temText As TextArtItem
Dim tChara As Character
IllDoc = IllApp.ActiveDocument
For Each temText In IllDoc.TextArtItems
temText.Selected = True
For Each tChara In temText.TextRange.Characters
Try
If Asc(tChara.Contents) = -32443 Then
tChara.Contents = "X"
End If
Catch ex As Exception
tChara.Contents = "X"
End Try
Next
temText.Selected = False
If Not temText Is Nothing Then System.Runtime.InteropServices.Marshal.ReleaseComObject(temText)
Next