win32

New Windows Code Integrity Patcher (Vista/7/8.x/10/11)

Second System 2.4.2 Download Page

Second System 2.4.1 Download Page

Second System 2.4 - D3D12 and Toast Notification Support Added!

Second System 2.4 Download Page

New Requirement For Qt 6.10 And Up: ICU

Solution to Windows Vista Inno Setup Bug

Inno Setup installers are not functional on Windows Vista, even though they run on Windows XP and Windows 7. They fail to render most elements and do not respond to most input, even on the "close" button. Applications such as Resource Hacker, Olla...

Second System 2.31: Photoshop 2025 on Windows 8.1!

With this intermediate release of Second System, it is now possible to run Adobe Photoshop 2025 on Windows 8.1. Additional functions and capabilities have been added from later versions of Windows 10, allowing users to also run RcloneView on Windo...

Second System 2.3: Windows 8.0/10/11 Support Added, Extra Qt 6 Support and More!

This new release of Second System extends support to Windows 8.0, 10 and 11 (pre-24H2). Windows 8.0 support (both release and some pre-release builds*) was added by popular demand. Windows 10 and 11 support is largely for comparative testing purpo...

Second System 2.2: BYOD (Bring your own DLLs!)

This release of Second System includes the following improvements:
-fixes to console handle duplication that affected some Python interpreter releases
-more user and kernel32 functions from Windows 8.x/10+
-one new DLL redirect to kernel3...

Second System for Windows 8.1

Second System for Windows 8.1 is now here! Run many modern applications including the latest Firefox, Google Chrome and Steam clients, productivity applications like Kdenlive and more! And limited AVX emulation for when your older system needs an ...

Second System 2.1: Now with Basic AVX Emulation!

Second System 2.1 adds several new DLLs to the package, including a D3D12 stub (for some QT 6 applications; although others like QBittorrent will need WinRT extensions that will be released separately in the near future), powrprof.dll and several ...

Second System 2.0 for Windows Vista and 7

This is an updated, improved release of Second System for Windows Vista and 7.

Now, major streaming services such as Netflix work in the latest browsers running under Second System. This ensures that these services remain usable on Windows...

NVIDIA Driver Patcher for Windows Vista x64

This driver patcher covers all Windows 7 x64-compatible NVIDIA display drivers, specifically 372.90 through 474.44. The patcher adds support for the NVIDIA GeForce GTX 16 series, RTX 20 series and 30 series GPUs to Windows Vista, as well as the co...

Windows Vista x64 Process Initialization Failure Patch for 4th Gen and Newer Intel CPUs

This ZIP archive includes a patch for the "logon process initialization failure" bug that occurs on Windows Vista x64, especially on 4th generation Intel CPUs or greater.

To ensure improved usability, various drivers for components popular i...

Second System: The Ultimate System DLL Replacer for Windows Vista x64

Second System is the successor to the "Vista Extended Kernel" and it allows the following applications to work: -Firefox 128 ESR -Chromium 1

Second System is the successor to the "Vista Extended Kernel" and it allows the following applicatio...

Manifest V2: The Future

I recently looked at the Manifest V2 support code and determined the following timeline for Google Chrome, standard Chromium and most other Chromium browsers:

Manifest V2 deprecation has five stages:

Stage 1: Business as usual, no...

SUPERMIUM WEBSITE REGISTRATION SUSPENDED OVER FALSE COMPLAINT

The registration for the domain that includes https://win32subsystem.live/supermium/ has been suspended after a complaint was sent alleging that malware was distri...

CUDA for Windows Vista (NVIDIA 35x-37x Drivers)

There are two things that do not work properly on Windows Vista with later NVIDIA drivers: Vulkan and CUDA. And with OBS Studio and FFmpeg, CUDA is necessary to use NVENC, so that's three in some cases.

You will have to use an older version ...

DX11, DX12 and DXGI are coming for everyone!

To help meet the needs of the Supermium web browser and ensure that all rendering features are available to users on older hardware and operating systems, in 2025, DX11, DX12 and DXGI will be available to enable WebGPU, video acceleration and comp...

safetensors library and bcryptprimitives.dll for Vista/7

Recently, I upgraded HuggingFace's safetensors Python library to the latest version, 0.4.5. It failed to work due to a missing DLL, however Python messages do not make it easy to find the offending DLL.

I eventually determined that module \_...

Supermium Plus Package - January 2025

The Supermium Plus Package for January 2025 also covers the Christmas period of 2024 and contains the following items: -Supermium 126.0.6478.260 R6 (x86 and x64) -The Supermium User Agent Override Tool (including PDF manual) -bcryptprimitives.dll for...

Vulkan on Windows Vista

Hardware accelerated Vulkan is now being tested on Windows Vista for the first time. NVIDIA drivers could not use Vulkan on Windows Vista under normal conditions due to missing GDI32/D3DKMT dependencies.

However, most Vulkan applications re...

Widevine CDM Patcher for Windows 7

In the following zip archive, you will find a command line script that will locate and patch widevinecdm.dll for continued usage on Windows 7 and Supermium (unfortunately there are other issues preventing its usage on XP/Vista at this time). Any s...

Supermium UACH Spoofer Tool

This is the Supermium User Agent Client Hints Spoofer. This tool allows users to spoof User Agent Client Hints and is compatible with Supermium versions 124 R2 and up.

How does it work?

Open the spoofer application, supe...

Microsoft secretly made the latest DirectWrite run on Windows 7, and I made it run on XP

This means that all the GDI font rendering gremlins, including the lack of colour fonts and offset issues, are gone!

https://...

Supermium 124 Customization Features - Colours and Tab Shapes

In the latest release of Supermium, there is some "hidden" functionality - customization of colours and tab shapes.

Chromium is removing many parts of the old user interface code with versions 125 and 126. We are taking the opportunity to ex...

LSC Application Compatibility Toolkit Used on D3D Compiler

The Supermium component d3dcompiler_47.dll is not intended to run on Windows XP. And because it was built by Microsoft and not as part of Supermium itself, it cannot be compiled to use progwrp.dll like the open-source components can.

...

Supermium 122 R5 (security patch) Released

Use the LSC subscription portal to obtain the special portable version of this release.

Thank You to All LSC Customers

I would like to thank all customers and supporters of the Legacy Software Corporation for the support you have provided since January 2024.

The LSC subscription service has enabled some degree of investment into Supermium operations. ...