I am trying to write an app to process SQL information I receive check for the mail contact and if they don't exist add them. I am trying to do this through VB.NET 2013. I am not able find sample code to do this. It appears as though the Microsoft.exchange.data.directory.management.dll maybe what I am looking for but I am unable to locate the add or save functions. I know this can be done through powershell but I do not want to do this through powershell. Please let me know how I can do this.
Thank you.