Administrative probation is sometimes referred to as "Court supervised" probation. It has similar requirements as regular probation, but does not involve reporting to a probation officer monthly. Generally it requires some completion of community service work and most importantly, not picking up any new charges. It can be a very reasonable way to resolve a case without imposing too many restrictions on the client.
Where I practice in Okaloosa County, Florida, Administrative Probation refers to the level of supervision. Administrative Probation means you will not have to report monthly in person to a probation officer. However, you are still on probation. You still must complete all required terms and conditions of your probation or you face a warrant for your arrest for Violation of Probation.