Jim Cheong (2/17/2010)
I recently came across this problem when we moved from Windows 32bit to Windows 64bit, using SQL 2005/2008 64bit. There are a lot of openrowset/opedatasource for older Excel 2003 xls.I've finally found a free solution. It seems like Microsoft has replacement Office driver for "Microsoft.Jet.4.0" with its "Microsoft.ACE.OLEDB.12.0".
For 32 bits download the 2007 Office System Driver:Data Connectivity Components
For 64 bits download the 2010 beta (Release June 2010)
Useful, thanks Jim