GetItemArrayVBS is identical to GetItemArray, except that it returns the document ids in an array of Variants, so the array can be used in VBScript.

[id(16), helpstring("method GetItemArrayVBS returns an array of Variants containing the document ids of each item in the search filter.  Because the array contains Variants rather than integers, it can be used in VBScript.")]
HRESULT GetItemArrayVBS([in] LONG iIndex, [out, retval] VARIANT * pArray);