I was checking for a field value change in a WSS V3 list with the help of event handlers with no success.
In the ItemUpdating event, the list item has the current values of the item and the AfterProperties has the values that the item will have after the update
The problem was that I was using the display name of the field rather than the internal name. In the SPListItem you can use the display name but also the internal name, but with the AfterProperties you can't use the display name. You must use the internal name of the field.
