Private Sub Command3_Click()
'Assinar XML digitalmente
Dialog1.Filter = "xml|*.xml"
Dialog1.ShowOpen
Dim arquivo As String
arquivo = Dialog1.FileName
Dim nfe As nfec.nfecsharp
Set nfe = New nfec.nfecsharp
Dim retorno As String
retorno = nfe.AssinarArquivoXML(arquivo, "infNFe")
Text1.Text = retorno
End Sub