Free wine making software for linux

Wine is an Open Source implementation of the Windows API on top of X and Unix.
Think of Wine as a compatibility layer for running Windows programs. Wine does not require Microsoft Windows, as it is a completely free alternative implementation of the Windows API consisting of 100% non-Microsoft code, however Wine can optionally use native Windows DLLs if they are available. Wine provides both a development toolkit for porting Windows source code to Unix as well as a program loader, allowing many unmodified Windows programs to run on x86-based Unixes, including Linux, FreeBSD, and Solaris.
Main features:
Binary Compatibility
- Loads Windows 9x/NT/2000/XP, Windows 3.x and DOS programs and libraries
- Win32 compatible memory layout, exception handling, threads and processes
- Designed for POSIX compatible operatings systems (eg. Linux and FreeBSD)
- ``bug-for-bug compatibility with Windows
Graphics
- X11-based graphics allows remote display to any X terminal
- X11, TrueType (.ttf/.ttc) and Windows Bitmap (.fon) Fonts
- DirectX support for games (limited Direct3D support)
- Printing via PostScript driver or legacy native Win16 printer drivers
- Enhanced Metafile (EMF) and Windows Metafile (WMF) driver
- Desktop-in-a-box or mixable windows
- Windows MultiMedia (WinMM) layer support with builtin codecs
Allows Windows program to interface with:
- Sound devices via ALSA, OSS, ARTS, JACK, and libaudio etc
- Multi-lingual keyboards and CJK input method support via XIM
- Modems, serial devices
- Networks (TCP/IP and IPX)
- ASPI Scanners
- Windows Tablets via XInput (eg. Wacom)
Wine API
- Designed for source and binary compatibility with Win32 code
- Win32 API test suite to ensure compatibility
- Compilable on a wide range of C compilers
- Permits mixing of Win32 and POSIX code
- Permits mixing of ELF (.so) and PE (.dll/.exe) binaries in one address space
- Win32 compatible header files
- Automatically generated API documentation
- Resource compiler
- Message compiler
- IDL compiler
- extensive Unicode support
- Internationalization -- Wine supports 16 languages
- Built-in debugger and configurable trace messages
- External memory checker support using Valgrind
- Sample programs
Enhancements:
- Direct3D support on top of WGL instead of GLX for better portability.
- Many DirectSound fixes.
- Still more gdiplus functions.
- Many crypt32 improvements.
- Lots of bug fixes.