Spell resistance: Yes (object)

[Sektat]

I don't get this:

--
Dimensional Anchor
Abjuration
Level: Clr 4, Sor/Wiz 4
Components: V, S
Casting Time: 1 standard action
Range: Medium (100 ft. + 10 ft./level)
Effect: Ray
Duration: 1 min./level
Saving Throw: None
Spell Resistance: Yes (object)
--

What's the meaning of "Yes (object)"? Only object can apply SR, but the creature can't?

 

[Hypersmurf]

Spell Resistance applies to the spell, and the spell can affect objects.

-Hyp.

 

[sukael]

From the SRD...

(object)

The spell can be cast on objects, which receive saving throws only if they are magical or if they are attended (held, worn, grasped, or the like) by a creature resisting the spell, in which case the object uses the creature’s saving throw bonus unless its own bonus is greater. (This notation does not mean that a spell can be cast only on objects. Some spells of this sort can be cast on creatures or objects.) A magic item’s saving throw bonuses are each equal to 2 + one-half the item’s caster level.

The terms "object" and "harmless" mean the same thing for spell resistance as they do for saving throws. A creature with spell resistance must voluntarily lower the resistance (a standard action) in order to be affected by a spell noted as harmless. In such a case, you do not need to make the caster level check described above.