ESRI, like many companies, has licensed iSEEK AnswerWorks from Vantage Linguistics for natural language search of the ArcGIS Help system. At ArcGIS 10, ESRI dropped the Microsoft Keyword indexing search function from the Help system. Unfortunately, ESRI's default settings for the indexed AnswerWorks searches are "full word match" only.
Has anyone figured out how the AnswerWorks settings in ArcGIS can be modified to return "partial word match" searches?