Currently Being ModeratedNov 13, 2012 12:33 PM (in response to Nicolai Schultz)
Not much to go on actually.
hiutil is for creating and examining .helpindex files. These files were historically created by Help Indexer.app, which now calls this tool.
Bootup holding CMD+r, or the Option/alt key to boot from the Restore partition & use Disk Utility from there to Repair the Disk, then Repair Permissions.