public static bool HasWritePermissionOnDir(string path)
		{
			var writeAllow = false;
			var writeDeny = false;
			var accessControlList = Directory.GetAccessControl(path);
			var accessRules = accessControlList.GetAccessRules(true, true,typeof(SecurityIdentifier));
			foreach (FileSystemAccessRule rule in accessRules)
			{
				if (((FileSystemRights.Write & rule.FileSystemRights) != FileSystemRights.Write) || rule.IdentityReference != WindowsIdentity.GetCurrent().User)
					continue;
				if (rule.AccessControlType == AccessControlType.Allow)
					writeAllow = true;
				else if (rule.AccessControlType == AccessControlType.Deny)
					writeDeny = true;
			}

			return writeAllow && !writeDeny;
		}