Column-Level Security in a List

I would like to implement a spreadsheet view of a list and control the
editability attribute of the various columns based on the logged on
user/group. Is this possible in WSS 3.0? If not, are there add-ons that
might support this functionality?

Thanks in advance,
Bob

Metadata is not independently secured apart from the content item the MD

Metadata is not independently secured apart from the content item the MD
describes.  I do not know of any third-party products that can do this.

--
Bill English, MVP
Mindsharp