I am using below code to deny Access. but it generate <code>"
System.UnauthorizedAccessException: Attempted to perform an unauthorized operation.". </code>
i am running application as Run as Administrator.please help me.
string path=@"C:\Windows\System32\calc.exe;
AddDirectorySecurity(path, "everyone", FileSystemRights.ReadData, AccessControlType.Allow)
public static void AddDirectorySecurity(string FileName, string Account, FileSystemRights Rights, AccessControlType ControlType)
{
DirectoryInfo dInfo = new DirectoryInfo(FileName);
DirectorySecurity dSecurity = dInfo.GetAccessControl();
dSecurity.AddAccessRule(new FileSystemAccessRule(Account, Rights, ControlType));
dInfo.SetAccessControl(dSecurity);
}
Exception ocour at this line " dInfo.SetAccessControl(dSecurity);"
Exception Details are:
System.UnauthorizedAccessException was unhandled
Message="Attempted to perform an unauthorized operation."
Source="mscorlib"
StackTrace:
at System.Security.AccessControl.Win32.SetSecurityInfo(ResourceType type, String name, SafeHandle handle, SecurityInfos securityInformation, SecurityIdentifier owner, SecurityIdentifier group, GenericAcl sacl, GenericAcl dacl)
at System.Security.AccessControl.NativeObjectSecurity.Persist(String name, SafeHandle handle, AccessControlSections includeSections, Object exceptionContext)
at System.Security.AccessControl.NativeObjectSecurity.Persist(String name, AccessControlSections includeSections, Object exceptionContext)
at System.Security.AccessControl.NativeObjectSecurity.Persist(String name, AccessControlSections includeSections)
at System.Security.AccessControl.FileSystemSecurity.Persist(String fullPath)
at System.IO.Directory.SetAccessControl(String path, DirectorySecurity directorySecurity)
at System.IO.DirectoryInfo.SetAccessControl(DirectorySecurity directorySecurity)
at usb_block_demo.Form1.AddDirectorySecurity(String FileName, String Account, FileSystemRights Rights, AccessControlType ControlType) in C:\Users\Seema\Desktop\usb block demo\usb block demo\Form1.cs:line 135
at usb_block_demo.Form1.button1_Click(Object sender, EventArgs e) in C:\Users\Seema\Desktop\usb block demo\usb block demo\Form1.cs:line 104
at System.Windows.Forms.Control.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ButtonBase.WndProc(Message& m)
at System.Windows.Forms.Button.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID, Int32 reason, Int32 pvLoopData)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.Run(Form mainForm)
at usb_block_demo.Program.Main() in C:\Users\Seema\Desktop\usb block demo\usb block demo\Program.cs:line 17
at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args)
at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()