Aba Search and Replace - Version 2.1 Aba is a tool for replacing text in multiple files. With Aba, you can quickly correct errors on your web pages, replace banners and copyright notices, change method names, and perform other text-processing tasks. Features: "search-as-you-type" interface, multi-line search and replace, regular expression support, Unicode support (UTF-8 and UTF-16), undo for any replacement, search history and favorites, integration with Windows Explorer and Total Commander, syntax highlight for regular expressions, HTML, CSS, JS, and PHP files.