VxKex and Raw Accel are both Windows utilities, but they address very different technical problems. VxKex is designed primarily as a compatibility layer that extends Windows 7 APIs so certain applications built for newer Windows versions can run on the older operating system. Raw Accel, by contrast, is a mouse-input driver designed to apply configurable acceleration to raw mouse input on modern Windows systems.
Because their purposes, architectures, and operating-system targets differ substantially, comparing VxKex vs Raw Accel is less about choosing between two competing products and more about understanding which type of functionality each provides.
VxKex vs Raw Accel at a Glance
| Feature | VxKex | Raw Accel |
| Primary purpose | Windows compatibility/API extensions | Custom mouse acceleration |
| Main target | Windows 7 | Windows 10 and Windows 11 |
| Core function | Helps newer applications run on Windows 7 | Modifies mouse input in the raw input stream |
| Mouse acceleration | Not its primary purpose | Yes |
| Application compatibility | Core feature | Not its purpose |
| Acceleration curves | No | Yes |
| Raw mouse input processing | Not its primary function | Yes |
| Per-application configuration | Yes | Configuration is focused on mouse behavior and devices |
| Driver/system component | Uses DLL/API extension mechanisms | Kernel-mode mouse-input driver |
| Open source | Yes | Yes |
| Typical users | Windows 7 users running newer software | Gamers and users wanting customized mouse acceleration |
| Main limitation | Compatibility depends on the application/API | Requires Windows 10/11 x86-64 |
What Is VxKex?
VxKex is a set of API extensions created primarily for Windows 7. Its purpose is to provide implementations of Windows APIs introduced in Windows 8, 8.1, and 10, allowing some newer applications to run on Windows 7.
Instead of changing Windows system files globally, VxKex loads its compatibility DLL into applications where it has been enabled. Its configuration can be accessed through an application’s Properties dialog, where users can enable VxKex for a particular executable.
The project supports a range of applications, including various Qt, Electron, Chromium-based, development, multimedia, and productivity applications. The compatibility list includes software such as Blender, Calibre, Chromium, GIMP, GitHub Desktop, Firefox, Python, qBittorrent, VS Code, and others.
Key VxKex Features
- Windows 7 API extensions
- Per-application compatibility configuration
- Support for many newer applications
- Qt6 application compatibility improvements
- Support for various Electron and Chromium-based applications
- 32-bit and 64-bit application support on compatible Windows systems
- Command-line configuration through KexCfg
- No global background service required
- Open-source development
VxKex is therefore primarily a software compatibility tool, rather than a gaming performance or mouse-control utility.
What Is Raw Accel?
Raw Accel is fundamentally different. It is a Windows 10 and Windows 11 x86-64 driver that applies configurable mouse acceleration to raw mouse input. The project began as a replacement for InterAccel and has expanded to include multiple acceleration types, charts, and other configuration features.
Raw Accel operates at the mouse-input level rather than attempting to make newer applications compatible with an older operating system.
Its configuration system allows users to experiment with different relationships between physical mouse speed and resulting pointer movement. The official guide documents concepts such as sensitivity, gain, velocity, anisotropy, smoothing, and different curve types.
Key Raw Accel Features
- Configurable mouse acceleration
- Raw input processing
- Multiple acceleration curve types
- Sensitivity and gain controls
- Graphical acceleration-curve visualization
- Horizontal and vertical behavior controls
- Device-specific configuration options
- DPI normalization
- Lookup-table curve configuration
- Input and sensitivity smoothing options
- Signed driver releases
- Open-source codebase
The project describes its releases as signed and states that the driver operates in system space while applying constant formulas to mouse input.
Features and Functionality Compared
The biggest difference between VxKex and Raw Accel is the layer at which they operate.
VxKex: Application Compatibility
VxKex works around operating-system compatibility problems. When an application expects APIs that Windows 7 does not natively provide, VxKex can supply compatible implementations through its DLL extension system.
This makes it useful when the problem is:
“This application requires a newer version of Windows.”
VxKex cannot guarantee that every modern application will work. Compatibility depends on which APIs and behaviors an application requires. The project’s own documentation notes that applications may need additional configuration and maintains an application compatibility list for this reason.
Raw Accel: Mouse Behavior
Raw Accel addresses a completely different problem:
“I want mouse movement to respond differently depending on how quickly I move the mouse.”
Its acceleration system can change sensitivity according to input velocity, allowing slow movements and faster swipes to have different effective sensitivity. The guide also provides advanced options for direction-dependent behavior and custom lookup-table curves.
Performance Considerations
Performance should be evaluated according to what each program is doing.
VxKex is intended to have a relatively limited system-wide footprint. Its documentation states that it does not modify system files, does not use background services, and does not install global hooks. Instead, its compatibility components are loaded into applications where VxKex is enabled.
Raw Accel is specifically designed to process mouse input continuously. Its architecture therefore differs from VxKex. The official project describes the driver as operating in the raw input stream, while its GUI can also generate charts and display recent mouse movements.
The practical performance question is consequently different for each tool:
- VxKex: Does the target application run correctly on Windows 7?
- Raw Accel: Does the configured acceleration produce the desired mouse response without unwanted behavior?
Neither tool should be judged solely by benchmark numbers because they are not intended to perform the same task.
Compatibility and System Requirements
VxKex Requirements
VxKex is designed specifically for Windows 7. The project’s documentation states that Windows 7 Service Pack 1 is the intended environment. Some applications may also require additional Windows updates.
Recent VxKex releases have expanded compatibility with applications and technologies such as newer Chromium versions, Qt6, Electron applications, and other software. The project’s release history also shows continuing compatibility fixes and additions.
An important limitation is that VxKex is not intended as a general-purpose compatibility solution for Windows 10 or Windows 11. Its main reason for existing is extending Windows 7 compatibility.
Raw Accel Requirements
Raw Accel targets Windows 10 and Windows 11 on x86-64 systems. Its official guide lists Windows 10/11, the Visual C++ 2019 runtime, and .NET Framework 4.7.2 or newer among the installation prerequisites. A system restart is required after installing or uninstalling the driver.
This creates an almost opposite compatibility profile:
- VxKex → primarily for Windows 7
- Raw Accel → primarily for Windows 10/11 x86-64
Gaming Use Cases
Gaming is another area where the distinction matters.
VxKex was originally not intended specifically for games, although its compatibility list and development history include some game-related software and newer releases have improved mouse-input compatibility for certain Unity-based titles. The project itself cautions that game support has historically been limited.
Raw Accel has a much more direct relationship with gaming because mouse acceleration is its central function. Players who want a customized relationship between mouse movement speed and in-game aiming movement can configure acceleration curves and sensitivity behavior.
However, Raw Accel does not make an incompatible Windows application compatible with an older operating system. These are separate functions.
Pros and Limitations
VxKex Pros
- Extends Windows 7 API compatibility
- Useful for running selected newer applications
- Can be enabled on individual programs
- Supports a broad range of application types
- Does not modify Windows system files
- Open-source project
- Can be configured through graphical and command-line tools
VxKex Limitations
- Primarily designed for Windows 7
- Compatibility is application-dependent
- Some applications still require additional configuration
- Modern applications can introduce APIs or dependencies that VxKex does not support
- It is not a dedicated mouse-acceleration utility
- It should not be treated as a universal replacement for upgrading Windows
The project’s issue tracker demonstrates that some newer applications can still encounter unsupported APIs or compatibility problems.
Raw Accel Pros
- Dedicated raw mouse-input acceleration
- Multiple acceleration approaches
- Detailed sensitivity and gain controls
- Visual curve and measurement tools
- Advanced configuration for experienced users
- Device and DPI-related options
- Open-source
- Designed specifically for Windows 10 and Windows 11 x86-64
Raw Accel Limitations
- Requires a supported modern Windows environment
- More complex than basic Windows mouse settings
- Advanced options can require experimentation
- Its purpose is limited to mouse-input customization
- Installing a driver is more involved than installing a conventional desktop application
- It does not solve general application compatibility problems
Ease of Use
VxKex is relatively straightforward when a supported application is already known. After installation, users can enable VxKex through the executable’s Properties dialog. Some programs may need additional application-specific settings.
Raw Accel has a different learning curve. Basic acceleration can be configured through its GUI, but advanced concepts such as gain, anisotropy, curve types, smoothing, and lookup tables provide considerably more control. That flexibility can also make the software more complicated for users unfamiliar with mouse acceleration.
Which Type of User Uses Each Tool?
VxKex is generally relevant to users who:
- Still operate Windows 7
- Need to run selected applications designed for newer Windows versions
- Want per-application compatibility settings
- Need newer Qt, Electron, Chromium, or other application support
- Prefer extending compatibility rather than replacing the operating system
Raw Accel is more relevant to users who:
- Use Windows 10 or Windows 11
- Want configurable mouse acceleration
- Play mouse-driven games
- Want different sensitivity behavior at different movement speeds
- Need detailed control over acceleration curves
- Want to analyze or visualize mouse-input behavior
VxKex vs Raw Accel: Main Differences
The comparison can be summarized around four areas.
Purpose: VxKex extends application compatibility, while Raw Accel changes mouse-input behavior.
Operating system: VxKex is designed around Windows 7, while Raw Accel targets Windows 10 and Windows 11 x86-64.
Technical layer: VxKex works through application-level compatibility DLLs and configuration, whereas Raw Accel uses a kernel-mode mouse-input driver.
Typical objective: VxKex is used when software expects newer Windows APIs; Raw Accel is used when a user wants configurable mouse acceleration.
Conclusion
VxKex and Raw Accel occupy very different positions in the Windows software ecosystem. VxKex is a compatibility-focused project intended to extend Windows 7 API support for selected newer applications, while Raw Accel is a specialized mouse-input driver for Windows 10 and Windows 11 that provides configurable acceleration behavior.
For that reason, there is no direct feature-for-feature competition between the two. Their requirements, technical implementations, and intended use cases are substantially different. Understanding whether the underlying need involves application compatibility or mouse-input customization provides the clearest way to distinguish VxKex from Raw Accel.