Connect to a map network drive

Question

I Have a batch file in a server in my network. I maped that shared folder (that batch file exist in it) every time that I want to run that batch file first I should have to connect to that network drive(with username and password) How can I do it in my code . Is there any way? I want to connect to that network drive by code in my form_load. I test codes below but it dose'nt work.

AppDomain.CurrentDomain.SetPrincipalPolicy(Princip alPolicy.WindowsPrincipal)
Dim idnt As New WindowsIdentity(username, password)
Dim context As WindowsImpersonationContext = idnt.Impersonate