Inserting row in database

I have some problems using ExecuteNonQuery. I receive an error saying "Operation must an updatetable query". I have changed the Folder options to
Tools | Folder Options | View and uncheck "Use Simple File Sharing (Recommended)" at the bottom.

I can't make it work, here's my code.

Code:

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sub insertKunde(sender as object, e as eventArgs)
        'Her bruger jeg direkte SQL-kommandoer til at indsætte i databasen
       
        Dim objConnection as OleDbConnection
        Dim objCommand as OleDbCommand
        Dim strSql as string

        Dim strCn as String ="Provider=Microsoft.jet.oledb.4.0;"
        strCn += "Data Source=" & server.mappath("autohuset.MDB") & ";"
       
        'Her åbner jeg en connection
        objConnection = New OleDbConnection(strCn)
        objConnection.open()
       
        strSql = "INSERT INTO kunde ('kundenr','navn','adresse','postnr','telefonnr','e-mail' )" & _
                " VALUES ('12','Hans Peter','Ny vej 12','9000','99661565','[email protected]' )"

        objCommand = New OleDbCommand(strSql, objConnection)
        objCommand.ExecuteNonQuery()
end sub

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I've found out, I changed the properties on the current folder, then everything worked properly.