Not sure if you are using D6 or D7, but in D6 you would choose:

Admin > Content > Content Types > [ Your Content Type ] > Manage Fields > [Edit your file field ] and look for the field setting of "Permitted upload file extensions"

In that field, enter zip

D7 is probably similar. Look for Content Types under Admin > Structure ...

John / NEARDARK

I am not sure if you are using Drupal 6 or Drupal 7, but in Drupal 6 you would choose:

• Admin > Content > Content Types > [Your Content Type] > Manage Fields > [Edit your file field] and look for the field setting of "Permitted upload file extensions"

• In that field, enter zip

Drupal 7 is probably similar. Look for Content Types under Admin > Structure.