네트워크 드라이브 연결하기

using System;
using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices;

namespace RGQueenClient
{
    class NetworkDriveConnect
    {
        /// 

        /// NETSOURCE 구조체 선언
        /// 
        [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
        public struct NETSOURCE
        {
            public uint dwScope;
            public uint dwType;
            public uint dwDisplayType;
            public uint dwUsage;
            public string IPLocalName;
            public string IPRemoteName;
            public string IPComment;
            public string IPProvider;
        }

        /// 

        /// WNetUseConnection API에 대한 닷넷 메서드 선언
        /// 
        /// 
        /// 
        /// 
        /// 
        /// 
        /// 
        /// 
        /// 
        /// 
        [DllImport("mpr.dll", CharSet = CharSet.Auto)]
        public static extern int WNetUseConnection(
            IntPtr hwndOwner,
            [MarshalAs(UnmanagedType.Struct)] ref NETSOURCE IPNetResource,
            string IPPassword,
            string IPUserID,
            uint dwFlags,
            StringBuilder IPAccessName,
            ref int IPBufferSize,
            out uint IPResult
            );

        /// 

        ///  네트워크 드라이브 생성
        /// 
        /// 서버주소
        /// 아이디
        /// 비밀번호
        /// 결과에 대한 문자열
        internal string setRemoteConnection(string strRemoteConnectString, string strRemoteUserID, string strRemotePWD)
        {
            int capacity = 64;
            uint resultFlags = 0;
            uint flags = 0;

            try
            {
                if ((strRemoteConnectString != "" || strRemoteConnectString != string.Empty) &&
                    (strRemoteUserID != "" || strRemoteUserID != string.Empty) &&
                    (strRemotePWD != "" || strRemotePWD != string.Empty))
                {
                    StringBuilder sb = new StringBuilder(capacity);
                    NETSOURCE ns = new NETSOURCE();

                    ns.dwType = 1;    //공유디스크
                    ns.IPLocalName = null;    //로컬 드라이브 지정하지 않음
                    ns.IPRemoteName = @strRemoteConnectString;
                    ns.IPProvider = null;
                    int result = WNetUseConnection(IntPtr.Zero, ref ns, strRemotePWD, strRemoteUserID, flags, sb, ref capacity, out resultFlags);

                    if (result == 0)
                    {
                        //Successfully connected to a network drive
                        return "0네트워크 드라이브가 성공적으로 연결되었습니다.";
                    }
                    else
                    {
                        //Unable to connect to a network drive. Please check your connection information.
                        return "네트워크 드라이브를 연결할 수 없습니다.\n연결 정보를 확인하세요..";
                    }
                }
                else
                {
                    //Network drive connection information is incorrect
                    return "네트워크 드라이브 연결 정보가 올바르지 않습니다.";
                }
            }
            catch (Exception e)
            {
                return e.Message;
            }
        }
    }
}