"Adam Clauss" <caba***@tamu.edu> wrote in message
news:11c7t6klun63153@corp.supernews.com...
>I have a C# service (running as Network Service account) that needs to
>access a fileshare:
> \\machinename\some\path
>
> This file share requires me to login with certain credentials.  How can I
> specify these from the context of my application?
>
> Thanks!
>
> --
> Adam Clauss
>
>
>

"Willy Denoyette [MVP]" <willy.denoye***@telenet.be> wrote in message
news:uErS$9XfFHA.352@TK2MSFTNGP09.phx.gbl...
>
> "Adam Clauss" <caba***@tamu.edu> wrote in message
> news:11c7t6klun63153@corp.supernews.com...
>>I have a C# service (running as Network Service account) that needs to
>>access a fileshare:
>> \\machinename\some\path
>>
>> This file share requires me to login with certain credentials.  How can I
>> specify these from the context of my application?
>>
>> Thanks!
>>
>> --
>> Adam Clauss
>>
>>
>>
>
> You have several options depending on the context.
> If you are running on a member server in a AD domain, you can simply add
> the "computer" name of the server running te service to the ACL of the
> shared directory on the resource server.
> Another option requires some PInvoke interop, you have to create a new
> logon session token (by calling LogonUser()) in the service and use the
> obtained token to impersonate the caller when accessing the remote
> resource.
> Yet another option is to establish a "use record" from within the service
> by calling Win32's API "NetUseAdd", following is a sample that illustrates
> this last option.
>
> [StructLayout(LayoutKind.Sequential,CharSet=CharSet.Auto)]
> struct _USE_INFO_2
> {
>  internal string ui2_local;
>  internal string ui2_remote;
>  internal IntPtr ui2_password; // don't pass a string or StringBuilder
> here!!
>  internal uint ui2_status;
>  internal uint ui2_asg_type;
>  internal uint ui2_refcount;
>  internal uint ui2_usecount;
>  internal string ui2_username;
>  internal string ui2_domainname;
> }
> class WinNet
> {
>  [DllImport("netapi32", CharSet=CharSet.Auto, SetLastError=true),
> SuppressUnmanagedCodeSecurityAttribute]
>  static extern int NetUseAdd(
>   string UncServerName, // not used
>   int Level,  // use info struct level 1 or 2
>   IntPtr Buf,  // Buffer
>   ref int ParmError
>  );
>  const uint USE_WILDCARD = 0xFFFFFFFF;
>
>  // Establish a use record
>  public static void UseRecord(string resource, string user, string
> password, string domain)
>  {
>   int ret = 0;
>   int paramError = 0;
>   _USE_INFO_2 use2 = new _USE_INFO_2();
>   IntPtr pBuf = IntPtr.Zero;
>   use2.ui2_password = IntPtr.Zero;
>   try
>   {
>    pBuf = Marshal.AllocHGlobal(Marshal.SizeOf(use2));
>    use2.ui2_local = null;
>    use2.ui2_asg_type = USE_WILDCARD;
>    use2.ui2_remote = resource;
>    use2.ui2_password = Marshal.StringToHGlobalAuto(password);
>    use2.ui2_username = user;
>    use2.ui2_domainname = domain;
>    Marshal.StructureToPtr(use2, pBuf, true);
>    ret = NetUseAdd(null, 2, pBuf, ref paramError);
>    if(ret != 0)
>    {
>         throw new Exception(new
> Win32Exception(Marshal.GetLastWin32Error()).Message);
>    }
>   }
>   finally
>   {
>    Marshal.FreeHGlobal(use2.ui2_password);
>    Marshal.FreeHGlobal(pBuf);
>   }
>  }
> }
>
> //usage...
> WinNet.UseRecord("\\\\servername\\share", "useraccount", "hispasswd",
> "domainname");
>
> Note that it's recommended to delete the session, by calling NetUseDel(),
> when you are done with it.
>
>
> Willy.
>
>

U¿ytkownik "Adam Clauss" <caba***@tamu.edu> napisa³ w wiadomo¶ci
news:11c7t6klun63153@corp.supernews.com...
>I have a C# service (running as Network Service account) that needs to
>access a fileshare:
> \\machinename\some\path
>
> This file share requires me to login with certain credentials.  How can I
> specify these from the context of my application?
>
> Thanks!
>
> --
> Adam Clauss
>

"Inez Korczynski" <korczynski.spam@gazeta.pl> wrote in message
news:da2vtf$3rj$1@inews.gazeta.pl...
>
> U¿ytkownik "Adam Clauss" <caba***@tamu.edu> napisa³ w wiadomo¶ci
> news:11c7t6klun63153@corp.supernews.com...
>>I have a C# service (running as Network Service account) that needs to
>>access a fileshare:
>> \\machinename\some\path
>>
>> This file share requires me to login with certain credentials.  How can I
>> specify these from the context of my application?
>>
>> Thanks!
>>
>> --
>> Adam Clauss
>>
>
> Hey, did you find and solve for that? I am looking for that too.
>