DUH! What a basic error! Thanks for catching it.

Knew I should have stuck with a collection. {vbg}

--
Regards,

Tushar Mehta
www.tushar-mehta.com
Excel, PowerPoint, and VBA add-ins, tutorials
Custom MS Office productivity solutions

In article ,
says...
This will prevent ISIN("You", Array("Yours","Mine")) from being True

ISIN = InStr(1, Chr$(0) & Join(StringSetElementsAsArray, Chr$(0)) &
Chr$(0), _
Chr$(0) & x & Chr$(0), vbTextCompare) 0