>oMW=Createobject("word.application") >oMW.documents.open('Letter.doc') >oDoc = oMW.activedocument >oDoc.mailmerge.executeI think You must open the DataSource before execute.
oMW=Createobject("word.application") oMW.documents.open('Letter.doc') oDoc = oMW.activedocument oDoc.MailMerge.OpenDataSource("YpurDataSource.DBF") oDoc.mailmerge.execute