Warning: This is 3.0 Edition material. It is possible that there is more recent 3.5 Edition version.
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Forced Incorporeality

(Ghostwalk)

Transmutation [Ectomancy]
Level: Cleric 3, Sorcerer 3, Wizard 3,
Components: V, S,
Casting Time: 1 action
Range: Medium (100 ft. + 10 ft./level)
Target: One ghost or naturally incorporeal undead
Duration: 1 round/level
Saving Throw: Will negates
Spell Resistance: Yes

The target ghost is enveloped in an orange haze that forces it to be incorporeal for the duration of the spell.
Forced incorporeality counters and dispels forced manifestation.