MSSQL: users and roles

How to get list of users with their roles?

select name, RoleName FROM sys.sysmembers sm
JOIN
( select 'RoleName' = name, 'RoleId' = uid, 'IsAppRole' = isapprole
from sysusers where issqlrole = 1 or isapprole = 1 ) roles
ON sm.groupuid=roles.RoleID
JOIN
( select * from master.sys.sysusers where islogin=1 ) logins
ON logins.uid=sm.memberuid;