This .NET method wraps the ObjectARX method AcDb3dSolid::createLoftedSolid.

Public virtual Function CreateLoftedSolid(
    crossSectionCurves As Entity[], 
    guideCurves As Entity[], 
    pathCurve As Entity, 
    loftOptions As LoftOptions
) As void

public virtual void CreateLoftedSolid(
    Entity\[\] crossSectionCurves, 
    Entity\[\] guideCurves, 
    Entity pathCurve, 
    LoftOptions loftOptions
);