Alok,

Thank you for the reply. I tried the code, but it seems to erase all
non-unique files and not just the ones who are the same within a 5
minute interval.

The following file:
http://hacktegus.com/test.csv

results in:

11/27/2006 16 1/0/1900 2
11/27/2006 27 1/0/1900 1
12/4/2006 31 1/0/1900 1
12/4/2006 36 1/0/1900 2
11/27/2006 45 1/0/1900 2
11/27/2006 64 1/0/1900 1
12/4/2006 73 1/0/1900 1
11/27/2006 95 1/0/1900 1
11/27/2006 97 1/0/1900 1
11/27/2006 149 1/0/1900 1
12/4/2006 152 1/0/1900 2
12/4/2006 182 1/0/1900 1
12/4/2006 193 1/0/1900 1
12/4/2006 194 1/0/1900 2
12/4/2006 262 1/0/1900 1
11/27/2006 366 1/0/1900 1
11/27/2006 384 1/0/1900 1
12/4/2006 466 1/0/1900 1
11/27/2006 472 1/0/1900 1
12/4/2006 494 1/0/1900 1
11/27/2006 586 1/0/1900 1
11/27/2006 636 1/0/1900 1
11/27/2006 696 1/0/1900 1
11/27/2006 699 1/0/1900 1
12/4/2006 754 1/0/1900 1
12/4/2006 971 1/0/1900 1
12/4/2006 984 1/0/1900 1
11/27/2006 996 1/0/1900 1
12/4/2006 1001 1/0/1900 2
11/27/2006 1006 1/0/1900 2
11/27/2006 1023 1/0/1900 1
12/4/2006 1033 1/0/1900 1

*I am using msado15.dll

Cheers mate.