BORLAND Hongkong last week launched the latest version of its popular database program, dBASE IV, and a new version of dBASE Complier for DOS. The new BASE IV can offer up to 10 times performance over previous versions and includes several new features. The dBASE Compiler for DOS, available separately, will allow developers to distribute dBASE III, dBASE III PLUS, and any version of dBASE IV applications. ''[Most] dBASE users have been asking for two major enhancements - make dBASE fast, and give me a product to compile my dBASE applications,'' said Mr Patrick Hui, general manager of Borland Hongkong. The dBASE IV offers a variety of new features, including improved performance, new memory management and language and programming enhancements. Faster browsing, query-by-example (QBE), report and label generation give users both quick access to their data and faster output. The program includes new Dynamic Virtual Memory Management (VMM) with up to 16 megabytes (MBs) of memory, providing faster task performance with larger applications and data sets, without having to access the hard disk. It has several new language enhancements to give developers more ways to create and control menus and mouse operations. The dBASE Compiler for DOS generates fully functional DOS executable (.EXE) programs from applications written in dBASE III, dBASE III PLUS and all versions of dBASE IV. The new dBASE Compiler is the only compiler 100 per cent compatible with the dBASE language. The new dBASE IV costs US$795. Registered owners of any previous version of dBASE can upgrade for $100 for stand-alone or LAN Pack versions. A network licence costs $425.00 per user. The dBASE Compiler costs $495.00. dBASE RunTime customers can upgrade to the new dBASE Compiler for $200. All registered owners of the dBASE IV Developer's Edition are eligible for a free dBASE Compiler.