>>If I do
>> INDEX ON view TAG view_tag
>>
>>DO I need to explicitly delete the index file OR
>>the system will delete it automatically?
>>
>>If I need to do it explicitly How do i know the file name
>>if I do not name it in the index command?
>>
>View indexes are in memory, you don't need to delete them.

Just making sure that the syntax you are really using doesn't use the view name in the INDEX ON statement...?