With AdScan32, you can instantly search within bulky collections of text units (called ads) organized as the entire files or their parts. Classical three-paned Explorer-like interface allows to easily switch between hierarchically arranged ad collections, view a list of ads, and read individual ads at the same time. Pre-indexed keyword-based full text search can be used for searching in collections of ads of no regular structure. This can be combined with pre-indexed search by user-defined data items extractable by regular structured text elements, if there are such ones in the ad texts as in the example of messages with data fields. The custom data items are defined by means of regular expression scripts, new friendly way of composing regular expressions, and assigned textual, numerical, date/time or currency data type being represented as columns in the ad list view. Searches are stored with the given ad collection. Managing indexes is extremely fast and fully automated.