The Regular Expression Library component for C++ Builder 3 implements regular expression searching of AnsiStrings and files using the regular expression syntax with optional extensions. Regular expressions come from the UNIX operating system and search for data based on patterns. Regular expression searching can be used for data validation, parsers, compilers, user input verification, and a host of applications that need a powerful search mechanism and/or verification ability. This library is fast and flexible and brings regular expressions fully into the realm of any C++ Builder programmer.