I can't save specific file name using SaveFileDialog

Question

I can't save a file for example with name: ZK 10/2014. I noticed that a problem is with this sign: /. Why is that? Maybe it's from the other reason?

Here is my code:

       Using SaveFileDialog1
            With SaveFileDialog1
                .Filter = "PDF files (*.pdf)|*.pdf|All files (*.*)|*.*"
                .Title = "Save a file as"
                .FileName = "Default1"
            End With

            Try
                If SaveFileDialog1.ShowDialog() = DialogResult.OK Then
                    path = IO.Path.GetFullPath(SaveFileDialog1.FileName)
                End If

                If path <> "" Then
                    'Here I save a file using webservice's method'
                End If

            Catch ex As DirectoryNotFoundException
                Logi.LogInfo(ex)
            Catch ex As FileNotFoundException
                Logi.LogInfo(ex)
            Catch ex As Exception
                Logi.LogInfo(ex)
            End Try
        End Using

When I set a file name to ZK 10/2014 I get MessageBox with this - File name is invalid. I want to use this name but I don't know what to change.

Answer 1

So, according to @Plutonix's and @Matt Wilko's comments filename cannot contain characters like: < > \ / | : * ? "

As @Matt Wilko said, here it is described - http://support2.microsoft.com/kb/177506