Several versions of the WinFax product were released over the next few years, initially for Windows 3.x and then a Windows 95-based version. WinFax PRO 2.0 for Windows was released in July 1991. The Windows versions were also localized to major European and Asian languages. The company made further in-roads by establishing tie-ins with modem manufacturers such as U.S. Robotics and Supra that bundled simple versions of the product (called "WinFax LITE") that offered basic functionality. Those wanting more robust features were encouraged to upgrade to the "PRO" version, and were offered significant discounts over the standalone retail version. All of this rapidly established WinFax as the de facto fax software. By 1994 almost one hundred companies were bundling versions of WinFax in with their own product, including IBM, Compaq, AST Research, Gateway 2000, Intel and Hewlett-Packard.