Set NTFS folder permissions on remote machine using .NET and WMI

After considerable amount of efforts and trial I was finally able to hack the solution to set NTFS permissions on a remote machine using .NET. For local file system it is just couple of line of codes and it works like a charm but when it comes to remote machines it just gives you a nightmare . So here goes my solution. I am sure this will help someone.

public bool SetPermissions(string remoteDir, string MachineName, string UserName, string Password) // Username and Password is of Admin account on remote machine

{

string TempName = remoteDir;

int Index = TempName.IndexOf(":");

string DriveLetter = ConfigurationManager.AppSettings["ShareDriveLetter"]; // e.q. C

if (Index != -1)

{

string[] arr = TempName.Split(new char[] { ':' });

DriveLetter = arr[0];

TempName = TempName.Substring(Index + 2);

}



ManagementPath myPath = new ManagementPath();

myPath.NamespacePath = @"root\CIMV2";



ConnectionOptions oConn = new ConnectionOptions();

oConn.Username = UserName;

oConn.Password = Password;

oConn.EnablePrivileges = true;

myPath.Server = MachineName;



ManagementScope scope = new ManagementScope(myPath, oConn);

scope.Connect();

//without next strange manipulation, the os.Get().Count will throw the "Invalid query" exception

remoteDir = remoteDir.Replace("\\", "\\\\");

ObjectQuery oq = new ObjectQuery("select Name from Win32_Directory where Name = '" + remoteDir + "'");

using (ManagementObjectSearcher os = new ManagementObjectSearcher(scope, oq))

{

if (os.Get().Count == 0)      //It don't exist, so create it!

{

ManagementPath path2 = new ManagementPath();

path2.Server = MachineName;

path2.ClassName = "Win32_Process";

path2.NamespacePath = @"root\CIMV2";

ManagementScope scopeProcess = new ManagementScope(path2, oConn);



using (ManagementClass process = new ManagementClass(scopeProcess, path2, null))

{

//Command line that you want to execute on remote machine

string commandLine = @"cmd /C cacls " + TempName +"  /C /T /E /P "+"0909020:F"; // 0909020:F is username:permissions



using (ManagementBaseObject inParams = process.GetMethodParameters("Create"))

{

inParams["CommandLine"] = commandLine;

inParams["CurrentDirectory"] = DriveLetter + @":\\";

inParams["ProcessStartupInformation"] = null;

using (ManagementBaseObject outParams = process.InvokeMethod("Create", inParams, null))

{

int retVal = Convert.ToInt32(outParams.Properties["ReturnValue"].Value);



return (retVal == 0);

}

}

}







}

else

{

return true;//if exists, return true; you may want to return false, of course

}

}

return false;

}