*Science*: BC Arbitrary Maths, GMP, *Compression*: BZip2, LZF, rar, Zip, zlib *Date/time*: Calendar *Interop*: COM/.Net, Java *Protocols*: Curl, IMAP, Direct-IO, FTP, IRCg, LDAP, mailparse, NIS, OpenSSL, SNMP *Databases*: DBM, dBase, db++, dbx, FrontBase, filePro, Hyperwave, Interbase, Informix, Ingress II, MaxDB, mSQL, MSSQL, MySQL, Oracle, Ovrimos, PDO, PostGreSQL, Sesam, SQLite, Sybase, ODBC *XML*: DOM, SimpleXML, SOAP, WDDX, XML-RPC, XSLT *Graphics*: ClibPDF, GD, Exif, mimetype, Ming, PDFLib/FDF *Internationalisation*: FriBiDi, Gettext, iconv, mbstring, Pspell, recode *Encryption*: MCrypt, MHash *System like functions*: Process Control, POSIX, Semaphore, Shared Memory, socket *Others*: mnogosearch, ncurses, Regular Expressions, POSIX, Printer, SPL, xdiff