净使用不是一种选择,我似乎无法让LogonUser工作.

有任何想法吗？

[编辑]这是一些代码：

public class UserImpersonator : IDisposable
{
    private WindowsImpersonationContext _impersonationContext;
    private IntPtr _userHandle = IntPtr.Zero;

    [DllImport("advapi32.dll",SetLastError = true)]
    private static extern bool logonUser(
        string lpszUsername,string lpszDomain,string lpszPassword,int dwlogonType,int dwlogonProvider,out IntPtr phToken
        );

    [DllImport("kernel32.dll",SetLastError = true)]
    private static extern bool CloseHandle(IntPtr hHandle);

    public UserImpersonator(string username,string password)
    {
        logonUser(username,"",password,(int)logonType.logoN32_logoN_NETWORK,(int)logonProvider.logoN32_PROVIDER_DEFAULT,out _userHandle);
        _impersonationContext = WindowsIdentity.Impersonate(_userHandle);
    }

    public void Dispose()
    {
        CloseHandle(_userHandle);
        _impersonationContext.Undo();
    }

    private enum logonType : int
    {
        logoN32_logoN_INTERACTIVE = 2,logoN32_logoN_NETWORK = 3,logoN32_logoN_BATCH = 4,logoN32_logoN_SERVICE = 5,logoN32_logoN_UNLOCK = 7,logoN32_logoN_NETWORK_CLEARTEXT = 8,logoN32_logoN_NEW_CREDENTIALS = 9,}

    private enum logonProvider
    {
        logoN32_PROVIDER_DEFAULT = 0,}
}

当我使用(新的UserImpersonator(用户名,密码))包装File.Copy操作时,我得到：

System.IO.IOException: logon failure: unknown user name or bad password.

但是,如果我首先尝试连接到资源管理器中的共享(在请求时输入身份验证信息),则File.Copy可以正常工作.看来上面的代码根本没有做任何事情.