How to set Directory share permission to erveryone via C#

1 ) Set Access Control

DirectoryInfo dInfo = new DirectoryInfo(fileName);
DirectorySecurity dSecurity = dInfo.GetAccessControl();
dSecurity.AddAccessRule(new FileSystemAccessRule("everyone",FileSystemRights.FullControl, InheritanceFlags.ObjectInherit | InheritanceFlags.ContainerInherit,PropagationFlags.InheritOnly,AccessControlType.Allow));
dInfo.SetAccessControl(dSecurity);

2) Sharing foldel

ManagementClass mc = new ManagementClass("win32_share");
ManagementBaseObject inParams = mc.GetMethodParameters("Create");
inParams("Description") = "My Shared Folder";
inParams("Name") = "Shared Folder Name";
inParams("Path") = "C:\Folder1";
inParams("Type") = ShareResourceType.DiskDrive;
inParams("MaximumAllowed") = null;
inParams("Password") = null;
inParams("Access") = null; // Make Everyone has full control access.
ManagementBaseObject outParams = classObj.InvokeMethod("Create", inParams, null);

3) Only in Windows 7 and Vista, upgrade "Everyone" sharing right

//user selection
NTAccount ntAccount = new NTAccount("Everyone");

//SID
SecurityIdentifier userSID = (SecurityIdentifier)ntAccount.Translate(typeof(SecurityIdentifier));
byte[] utenteSIDArray = new byte[userSID.BinaryLength];
userSID.GetBinaryForm(utenteSIDArray, 0);

//Trustee
ManagementObject userTrustee = new ManagementClass(new ManagementPath("Win32_Trustee"), null);
userTrustee["Name"] = "Everyone";
userTrustee["SID"] = utenteSIDArray;

//ACE
ManagementObject userACE = new ManagementClass(new ManagementPath("Win32_Ace"), null);
userACE["AccessMask"] = 2032127;                                 //Full access
userACE["AceFlags"] = AceFlags.ObjectInherit | AceFlags.ContainerInherit;
userACE["AceType"] = AceType.AccessAllowed;
userACE["Trustee"] = userTrustee;

ManagementObject userSecurityDescriptor = new ManagementClass(new ManagementPath("Win32_SecurityDescriptor"), null);
userSecurityDescriptor["ControlFlags"] = 4; //SE_DACL_PRESENT 
userSecurityDescriptor["DACL"] = new object[] { userACE };

//UPGRADE SECURITY PERMISSION
ManagementClass mc = new ManagementClass("Win32_Share");
ManagementObject share = new ManagementObject(mc.Path + ".Name='" + CondivisionName + "'");
share.InvokeMethod("SetShareInfo", new object[] { Int32.MaxValue, description, userSecurityDescriptor });

This allow me to upgrade the security permission of "Everyone" in Windows Vista & 7 and get "Full Control".

 /*
          * This method is used to perform the main actions of sharing the folders
          * It accepts three arguments: -
          * A path of the folder,
          * A ShareName by which you would want to share the folder
          * Description of the folder
          * You cannot have the first two arguments as empty. They should consist of 
          * data. The third arguments can be an empty string.
          */
         private static void QshareFolder(string FolderPath, string ShareName, string Description)
         {
             try
             {
                 // Create a ManagementClass object
                 ManagementClass managementClass = new ManagementClass("Win32_Share");

                 // Create ManagementBaseObjects for in and out parameters
                 ManagementBaseObject inParams = managementClass.GetMethodParameters("Create");
                 ManagementBaseObject outParams;

                 // Set the input parameters
                 inParams["Description"] = Description;
                 inParams["Name"] = ShareName;
                 inParams["Path"] = FolderPath;
                 inParams["Type"] = 0x0; // Disk Drive
                 //Another Type:
                 //        DISK_DRIVE = 0x0
                 //        PRINT_QUEUE = 0x1
                 //        DEVICE = 0x2
                 //        IPC = 0x3
                 //        DISK_DRIVE_ADMIN = 0x80000000
                 //        PRINT_QUEUE_ADMIN = 0x80000001
                 //        DEVICE_ADMIN = 0x80000002
                 //        IPC_ADMIN = 0x8000003
                 inParams["MaximumAllowed"] = null;
                 inParams["Password"] = null;
                 inParams["Access"] = null; // Make Everyone has full control access.                
                 //inParams["MaximumAllowed"] = int maxConnectionsNum;

                 // Invoke the method on the ManagementClass object
                 outParams = managementClass.InvokeMethod("Create", inParams, null);
                 // Check to see if the method invocation was successful
                 if ((uint)(outParams.Properties["ReturnValue"].Value) != 0)
                 {
                     //MessageBox.Show ("Unable to share the folder: " + outParams.Properties["ReturnValue"].Value);
                     MessageBox.Show("Error sharing MMS folders. Please make sure you install as Administrator.", "Error!");
                 }

                 //user selection
                 NTAccount ntAccount = new NTAccount("Everyone");

                 //SID
                 SecurityIdentifier userSID = (SecurityIdentifier)ntAccount.Translate(typeof(SecurityIdentifier));
                 byte[] utenteSIDArray = new byte[userSID.BinaryLength];
                 userSID.GetBinaryForm(utenteSIDArray, 0);

                 //Trustee
                 ManagementObject userTrustee = new ManagementClass(new ManagementPath("Win32_Trustee"), null);
                 userTrustee["Name"] = "Everyone";
                 userTrustee["SID"] = utenteSIDArray;

                 //ACE
                 ManagementObject userACE = new ManagementClass(new ManagementPath("Win32_Ace"), null);
                 userACE["AccessMask"] = 2032127;                                 //Full access
                 userACE["AceFlags"] = AceFlags.ObjectInherit | AceFlags.ContainerInherit;
                 userACE["AceType"] = AceType.AccessAllowed;
                 userACE["Trustee"] = userTrustee;

                 ManagementObject userSecurityDescriptor = new ManagementClass(new ManagementPath("Win32_SecurityDescriptor"), null);
                 userSecurityDescriptor["ControlFlags"] = 4; //SE_DACL_PRESENT 
                 userSecurityDescriptor["DACL"] = new object[] { userACE };
                 //can declare share either way, where "ShareName" is the name used to share the folder
                 //ManagementPath path = new ManagementPath("Win32_Share.Name='" + ShareName + "'");
                 //ManagementObject share = new ManagementObject(path);
                 ManagementObject share = new ManagementObject(managementClass.Path + ".Name='" + ShareName + "'");

                 share.InvokeMethod("SetShareInfo", new object[] { Int32.MaxValue, Description, userSecurityDescriptor });

             }
             catch (Exception ex)
             {
                 MessageBox.Show("Error sharing folders. Please make sure you install as Administrator. ERROR: " + ex.Message, "Error!");
             }
         }
         /*
          * this method is called as soon the app is started.
          * this method gets the current directory of the application,
          * calls another method which creates and shares the apps and logs folders
          * under the current directory. 
          */
         private static void Share()
         {
             string strfol;
             string folder;
             string newFolder;
             DirectoryInfo di;
             try
             {
                 strfol = Application.ExecutablePath;
                 strfol = strfol.Substring(0,strfol.IndexOf(Application.ProductName + ".EXE"));
                 newFolder = "apps";
                 folder = strfol + newFolder;
                 if (!Directory.Exists(folder))
                     Directory.CreateDirectory(folder);
                 di = new DirectoryInfo(folder);
                 DirectorySecurity dSecurity = di.GetAccessControl();
                 dSecurity.AddAccessRule(new FileSystemAccessRule("Everyone", FileSystemRights.FullControl, InheritanceFlags.ObjectInherit | InheritanceFlags.ContainerInherit, PropagationFlags.NoPropagateInherit, AccessControlType.Allow));
                 di.SetAccessControl(dSecurity);
                 if (di != null)
                     QshareFolder(folder, newFolder, "");
             }
             catch (Exception ex)
             {
                 MessageBox.Show("Error sharing folders. Please make sure you install as Administrator. ERROR: " + ex.Message, "Error!");
             }

         }

转： http://social.msdn.microsoft.com/Forums/windowsdesktop/en-US/de213b61-dc7e-4f33-acdb-893aa96837fa/c-set-directory-sharing-permission-full-control-for-everyone-programmatically-in-windows-7-or