Add info.lpParameters = "Security";
to show Security tab.
Or info.lpParameters = "Details";
to show Details tab.
Now ShowFileProperties method is:
public static bool ShowFileProperties(string Filename)
{
SHELLEXECUTEINFO info = new SHELLEXECUTEINFO();
info.cbSize = System.Runtime.InteropServices.Marshal.SizeOf(info);
info.lpVerb = "properties";
info.lpFile = Filename;
info.lpParameters = "Security";
info.nShow = SW_SHOW;
info.fMask = SEE_MASK_INVOKEIDLIST;
return ShellExecuteEx(ref info);
}
Reference: To show the properties page of a file and navigate to a tab