private void ApplyUserCredentials(string Share, string Domain, string Username, string Password)
        {
            USE_INFO_2 useInfo = new USE_INFO_2();
            useInfo.ui2_local = string.Empty;
            useInfo.ui2_remote = Share;
            useInfo.ui2_password = Password;
            useInfo.ui2_asg_type = 0;    //disk drive
            useInfo.ui2_usecount = 1;
            useInfo.ui2_username = Username;
            useInfo.ui2_domainname = Domain;            
            uint paramErrorIndex;

            uint returnCode = NetUseAdd(null, 2, ref useInfo, out paramErrorIndex);
            if (returnCode != 0)
            {
                throw new Win32Exception((int)returnCode);
            }
        }
        
        [DllImport("NetApi32.dll", SetLastError = true, CharSet = CharSet.Unicode)]
        private static extern UInt32 NetUseAdd(string UncServerName,UInt32 Level, ref USE_INFO_2 Buf,  out UInt32 ParmError);

        [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
        private struct USE_INFO_2
        {
            internal string ui2_local;
            internal string ui2_remote;
            internal string ui2_password;
            internal UInt32 ui2_status;
            internal UInt32 ui2_asg_type;
            internal UInt32 ui2_refcount;
            internal UInt32 ui2_usecount;
            internal string ui2_username;
            internal string ui2_domainname;
        }