Compare Columns In Different Workbooks and Highlight Differences

Need a macro to compare columns in 2 different workbooks and highlight the entries that are different, based on the comparison
Column C of Workbook 1 had 5 names on 5 rows
Column B of Workbook 2 has 5 names on 5 rows (there will be instances when workbook 2 might have more or less names)
Can a macro compare column C of workbook 1 and column B of workbook 2 and highlight the entries that are different in the 2 workbooks?
There is a blank row after the list of names ends, so I believe a macro is able to identify when a list ends.

Any help is sincerely appreciated!

Please see the two workbooks attached. In Book 1 column B has a list of names and Book 2 column C has a list of names. Some are common, some are not. The macro should, in Book 1, compare the names in column B (from Book 1) with the names in column C (in Book 2) and populate the result in Book 1. Where the names match, it can return"OK" and where the names do not match, it can return "Not Found". Since this list of names in both spreadsheets can be long, it would be nice if Excel could check row after row till it finds a blank cell and then stop.

That helps, Thanks. It looks for each value listed in Book 1 and returns OK or NOT FOUND. It does not however look for values in Book 2 and compare it against the list in Book 1. But this is a great start. I'll try and build on this. Thx again.