When you move a user into a DSfW domain, the user samification fails. This means that AD attributes will not be generated for this user and hence the user will not be a part of the domain. This issue occurs when master replica of the domain partition is present on a non-DSfW server.
When you move objects across containers through MMC, even though the move operation is successful, you might get an error message saying that Windows cannot move that object because there is no such object on the server. You can use MMC to connect to the domain controller that holds the master replica and retry the operation.
DSfW explicitly adds users to the primary group. This causes MMC to display the group twice in the memberOf property page.
You cannot add users by using MMC to Domain Local, Global and Universal Groups who do not have the Last Name property. Though an error message is displayed, the users are added to the groups. The error message can be avoided if the user is created with the Last Name property.
DSfW server does not support Dynamic Groups. However if applications are connected to plain eDirectory servers, dynamic groups will function as expected.