Functions	WSS 3.0/ MOSS 2007	SharePoint Permission Boost
Make SharePoint Columns invisible or read-only to certain people		●
Make SharePoint Item Attachments invisible or read-only to certain people		●
Make SharePoint list views invisible or read-only to certain people		●
Auto-assign permissions to all SharePoint list items by permission workflow			●
Auto-assign permissions to SharePoint user/group field columns			●
Auto-change SharePoint item permissions when item is created or modified			●
Add or remove some permission to all items in a SharePoint list				●
Inherit permission from parent list permission when custom permission setting is unnecessary				●

SharePoint Permission Boost which contains SharePoint Column/View Permission, SharePoint Item Permission Batch and SharePoint Permission Workflow is one powerful permission solution for SharePoint list.

SharePoint Column/View Permission

SharePoint Item Permission Batch

SharePoint Permission Workflow