DOSBox-X features a drop-down menu system so that you can do many things from the GUI menu instead of typing commands or so. The menu can also be toggled on and off.

You can configure DOSBox-X‘s settings directly from its built-in GUI configuration tool instead of having to manually modify its config file (you can use either way).

DOSBox-X provides a fully-featured system for saving and loading states with support for up to 100 save slots, selectable from the menu, as well as the option to use your own save files. You can also let DOSBox-X save states automatically for specific programs and/or in user-defined intervals.

For image files, DOSBox-X allows you to mount them automatically without specifying additional options such as -size and -t. And for drive mounting on Windows, DOSBox-X automatically asks you mount a drive if you try to enter a drive which is not yet mounted, and you can also let DOSBox-X automatically mount all available Windows drives at start.

With DOSBox-X you can run the Japanese PC-98 system and PC-98 games and applications, as well as the Japanese AX (JEGA) and J-3100 systems. Set machine=pc98 or machine=jega in the config file to start DOSBox-X in the PC-98 or JEGA mode. Look at the PC‐98 emulation in DOSBox‐X guide page for more information about PC-98 support.

DOSBox-X implements native DOS/V services for Chinese/Japanese/Korean language support, so that are these languages can be displayed without any external tools. Set dosv to jp, chs (or cn), cht (or tw), or ko for different CJK languages. Look at the East Asian language support in DOSBox‐X guide page for more information about support for East Asian languages and systems.

DOSBox-X officially supports both SDL1 and SDL2 and provides both SDL1 and SDL2 builds, so that you can choose either the SDL1 or SDL2 build to use. While most features are common to both SDL builds, certain functions may only be found in one of them.

DOSBox-X allows you to translate its various user interfaces, including text in the DOS window, the drop-down menus, the graphical Configuration Tool and the Mapper Editor. Both standard SBCS languages and DBCS languages are supported. Several language files can be found in the repository and are ready to use.

DOSBox-X provides many more config options that are not found in DOSBox, so that users have more options to customize the virtual machine inside DOSBox-X. For example, you can skip the splash screen and the welcome banner, or even starting DOSBox-X in silent mode (-silent), along with a lot more.

DOSBox-X can automatically decide the CPU cycles to use for optimized speed, and it provides a Turbo function to increase the speed of the system inside it, which can be toggled at run-time.

DOSBox-X allows you to modify or customize the strings and additional contents displayed in its title bar and its appearance. The cycles count (FPS) and emulation speed relative to real-time can also be displayed in the title bar.

Aimed to be a complete DOS emulation package, DOSBox-X officially supports DOS applications, not just DOS games. All types of DOS programs are officially supported in DOSBox-X.

One of DOSBox-X’s main goals is to become a great platform to run Windows 3.x and 9x/Me and their software. As a result we have made many improvements to their emulations. Look at the Microsoft Windows in DOSBox-X guide page for more information.

DOSBox-X has many useful tools already built-in, such as CWSDPMI, DOS4GW, DOSIDLE and IMGMAKE, which will appear on its Z: drive.

DOSBox-X includes many DOS commands that are missing in DOSBox, such as FOR, VOL, LABEL, ATTRIB, DELTREE, PROMPT, EDIT, FIND, and MOUSE.

DOSBox-X supports a [config] section that supports most DOS config.sys commands, such as COUNTRY, DEVICE, DOS, FCBS, FILES, INSTALL, LASTDRIVE, NUMLOCK, SET, and SHELL.

You can set SHELL=4DOS.COM so that DOSBox-X will run the 4DOS 8.00 shell at start instead of the default shell.

DOSBox-X can be started on a specific window position, or on a specific display with a multi-monitor setup. They can work in combination to specify a window position on the specific display.

For most output options DOSBox-X allows you to resize the DOSBox-X window as you wish and will stretch the image to fit the window. You can also specify an aspect ratio (such as 16:10) so that DOSBox-X will enforce such an aspect ratio for the image, or let DOSBox-X use the original image’s aspect ratio in the aspect ratio correction mode.

DOSBox-X allows you to change the transparency of its window, from 0 (no transparency) to 90 (high transparency), giving you a different feeling when running the DOS emulation. Supported on all Windows builds and SDL2 builds of Linux/macOS platforms.

DOSBox-X allows you to freely customize the internal virtual drive Z: in the configuration, including adding your own files to the Z drive, or hiding/replacing existing files on the Z drive, with directory support.

You can mount ZIP or 7Z archives as DOSBox-X drives and run your DOS programs or games in these mounted drives directly. They will operate in read+write mode with overlay mounts.

DOSBox-X supports the BIOS IDE interface for hard disk and CD drives, which is especially useful for running guest systems inside DOSBox-X.

DOSBox-X supports virtually all CPU types prior to Pentium 4 at this time, from 8086/8088 to Pentium Pro/2/3, including support for Pentium MMX instructions. DOSBox-X also allow you to emulate the speed of a specific CPU (from 8088 XT 4.77MHz to Pentium III) in terms of cycles. Select them from the "CPU" menu.

DOSBox-X supports more video modes in addition to the more common ones, such as MDA, MCGA, Amstrad, and a few others, in addition to the standard ones.

DOSBox-X supports parallel ports and printers attached to them, whether they are real printers or emulated printers for PostScript or PNG outputs. The parallel ports (which can be extended to LPT9) may be used either for printing or for direct port passthrough. Look at the Setting up printing in DOSBox-X guide page for more information.

DOSBox-X fully supports long filenames (LFN) which can be up to 255 characters, not just 8.3 names. Set either ver=7.1 or lfn=true in the config file to enable this feature.

FAT32 file system is supported in DOSBox-X in addition to FAT12 and FAT16, so you can make and mount drives larger than 2GB. Set ver=7.1 to enable this feature. You can also mount logical partitions within disk images with an option.

DOSBox-X supports the DOS SHARE functions, which provides file-locking and record-locking for networked environments, especially on the Windows platform. This may be very important for usages such as networked DOS database applications. Hint: you probably want to set nocachedir=true and file access tries=3 for this.

With DOSBox-X there are several ways to copy and paste between DOSBox-X and the host clipboard, such as using a mouse button (right or middle), the arrow keys, mapped keyboard shortcuts, or using a special DOS device or DOS program for doing so. Look at the Clipboard support in DOSBox-X guide page for more information.

You can let DOSBox-X automatically convert mouse wheel movements to arrow keys, so that you can use the mouse wheel for scrolling in DOS applications. DOSBox-X also supports the CuteMouse wheel mouse extension DOS API for DOS programs natively supporting it (such as DOS Navigator 2), which will work when the mouse wheel movement conversion is disabled.

It is possible to launch a host application from inside DOSBox-X to run on the host system, either using START command or in the case of Windows also run it directly from the shell. This feature is disabled by default for security reasons, but you can set startcmd=true config option or -hostrun command-line option to enable the feature.

You can change the date and time either from DOSBox-X’s DOS shell (DATE and TIME commands), or using the DOS APIs or with DOSBox-X’s BIOS Setup Utility. DOSBox-X also provides the option to automatically synchronize the date and time with the host system.

DOSBox-X lets you use the system file browser to select a DOS program to quickly run inside DOSBox-X on all supported platforms, and file associations for DOS programs are supported for the Windows Explorer as well.

DOSBox-X allows you to set one or more config options from the DOSBox-X command line, overriding any preset config options that may be specified in the config file. For example, dosbox-x -set machine=pc98 forces DOSBox-X to start in PC-98 mode.

You can press the Ctrl+C or Ctrl+Break key to break from the current operation when running in the shell, many DOS commands as well as DOS applications.

DOSBox-X supports various different types of disk images, such as Virtual Hard Disk (VHD), HDI (for PC-98 mode) and QEMU copy-on-write v2 (QCOW2) disk images and MAME CHD images for CD images, in addition to the standard disk image types (IMG, ISO, CUE, etc). Look at the Managing image files in DOSBox‐X guide page for more information.

With DOSBox-X it is possible to mount .cue files (either from the menu or with IMGMOUNT command) that include FLAC, MP3, WAV, OGG Vorbis and Opus music as CD audio tracks.

DOSBox-X supports many additional scalers such as the xBRz scalers, and other additional scaling options gray, gray2x, hardware_none, hardware2x, hardware3x, hardware4x, hardware5x.

DOSBox-X can emulate the 3dfx Voodoo in either the low-level emulation mode (emulating the 3dfx Voodoo 1 hardware) or the high-level emulation mode (where the Glide API calls are passed through to the host OS). Look at the Setting up 3dfx Voodoo in DOSBox-X guide page for more information.

DOSBox-X supports the emulation of the Novell NE2000 network adapter, which allows you to connect to the Internet from inside DOSBox-X, such as a guest Windows 9x system running with DOSBox-X. Both PCAP and Slirp backends are supported. Look at the Setting up networking in DOSBox-X guide page for more information.

With these features you can connect the emulated modem via reliable UDP (in addition to TCP), and you may also map fake phone numbers to Internet addresses which is useful for programs where limitations on phone number input field are too strict.

With this feature you can access or browse UNC network paths in the form \\COMPUTER\FOLDER directly on Windows systems, including listing, opening, writing, copying, and executing files on UNC network paths directly without having to mount them as DOS drives first.

DOSBox-X integrates the emulation of Roland MT-32, which pre-dates General MIDI and was used by a broad range of DOS games (starting in 1988 with King’s Quest IV).

DOSBox-X supports the FluidSynth MIDI synthesizer, which allows you to use a wide range of sound fonts available online, such as the free FluidR3_GM.sf2.

The Innovation SSI-2001 sound card is supported in DOSBox-X as well, which gives the emulated system the sound capabilities of a Commodore 64.

DOSBox-X supports the pixel-perfect scaling as an output option (output=openglpp), which improves the video image quality.

The OpenGL (GLSL) shaders are fully supported by DOSBox-X for OpenGL outputs, and you can in fact load or change them dynamically in addition to loading them at start.

DOSBox-X supports Direct3D along with pixel shaders which provides many more output flexibilities on Windows systems.

DOSBox-X supports TrueType fonts (TTF) which provides high-resolution display for DOS shell and program running in text-mode. Features such as on-screen text styles are supported in this output mode too. Look at the Using TrueType font output in DOSBox‐X guide page for more information.

DOSBox-X supports many additional code pages for conversions between the host and guest systems, both for the TrueType font (TTF) output and other outputs, and this includes standard SBCS code pages and also DBCS code pages used by Chinese, Japanese, and Korean languages. With a suitable TTF font you will be able to run text-mode DOS applications in these languages using the TTF output as well as printing texts in these languages.

DOSBox-X allows you to view text encoded in UTF-8 or UTF-16 just like normal ASCII text in the current code page. For example, the command UTF8 < txtutf8.txt will view the UTF-8 encoded file named "txtutf8.txt", whereas the command UTF16 < txtutf16.txt will view the UTF-16 encoded file named "txtutf16.txt".