Security Role Permission for Creating New Users in MS CRM 2011

Today I had an issue about not having the "new" button for a custom role to create new Users in MS CRM 2011. Searching the Internet I have found a article about this issue which solves the problem.

In Business Management Tab should have the following security privileges:
1. Organization Level Security (Green Circle) for Read and Append To privileges for Business Unit entity
2. Organization Level Security (Green Circle) for Read andAppend To privileges for Security Role entity
3. Organization Level Security (Green Circle) for Read, Create, Append andAppend To privileges for User entity
4. Organization Level Security (Green Circle) for Read, Createand Append To privileges for User Settings entity
5. Organization Level Security (Green Circle) for Read License Info underMiscellaneous Privileges
In Customization Tab should have the following security privileges:
1. Organization Level Security (Green Circle) for Read privileges for System Form and View entity