You can use the Xythos Drive to view, add and remove permissions from your files and folders. The permissions are controlled and maintained by the server. The Xythos Drive conforms to version 1.3 of the RFC3744 specification for the WebDAV Access Control Protocol.

You can share your files with individual users or groups of users by giving them one or more of permissions:

Read Permission
Read permission allows other users or groups of users to view your file or folder. If a user has read permission on a folder but does not have read permission on all of the contents of that folder, the user will see only the file and folders in which the user has read permission. 

Write Permission
Write permission allows other users or groups of users to edit the file or folder. Write permits the editing and viewing of the properties and contents of that item, as well as renaming the item, if the user also has delete permission on the item.

Delete Permission
Delete permission allows other users or groups of users to move the file or folder to the Trash.

Administer Permission
Administer permission allows other users or groups of users to change permissions of the file or folder.

Viewing permissions

To view the permissions that exist on a file or folder:

1. Using Windows Explorer, locate the file or folder.
2. Right-click the file or folder, and then click Sharing.

   The Share with users box lists all of the users with permission to access the file or folder.  Depending on the way your server is set up, certain users or groups, below, may appear in the list:
   
   Owner
   This is the user that owns a file or folder.
   
   Authenticated Users
   These are any other users within the same Xythos system as you. Use this category to share your file and folder with all users of your Xythos system.
   
   Public
   Any user accessing the Xythos system without an account. Use this category for making your files and folders public to the outside world.
   
   Other users that have been given privileges will also be listed.

3. Under Share with users, select a user or group to display in the Permissions box, all permissions for that user will be marked.

Removing permissions

To remove a user's or group's permissions for a file or folder:

1. Using Windows Explorer, locate the file or folder.
2. Right-click the file or folder, and then click Sharing.
3. Share with users lists all of the users with permission to access the file or folder. Select the user or group whose permissions you would like to remove, and then click Remove.
4. To save these changes, click OK or Apply.

Changing permissions

To remove a user's or group's permissions for a file or folder:

1. Using Windows Explorer, locate the file or folder.
2. Right-click the file or folder, and then click Sharing.
3. Share with users lists all of the users with permission to access the file or folder. Select the user or group whose permissions you would like to change.
4. In the Permissions box, select or clear the appropriate check boxes.
5. To save these changes, click OK or Apply.

Adding Permissions

To add for a user or group to a Permissions list:

1. Using Windows Explorer, locate the file or folder.
2. Right-click the file or folder, and then click Sharing. The Sharing Options dialog box lists the users that have permission to access the file.
3. To share the file or folder with a user or group not listed, click Add.
4. In the Search for box, type * to list all names, type a partial name to lookup all users and groups whose name includes the partial name.
5. In the IN box, select either the Display Name or the user ID. Display Name, like the displayname property, is a user-friendly name. If you select ID, Xythos on Demand usernames are searched.
6. To get as list of all users and groups with partial name in their name, click Search.
7. Select one or more of the names within the Users found area. Press the CNTL key or Shift key to select more than one user, and then click Add selected users.
8. Select a user or group, and then set permissions by selecting all check boxes that apply. Repeat this step for each user and group added.
9. To save these changes, click OK or Apply.