Second System 2.1: Now with Basic AVX Emulation!
Added 2025-10-03 19:30:37 +0000 UTCSecond 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 new DLL redirects.
Some issues have also been fixed, such as errors regarding the interface ITaskbarList4 in ShareX 13.1. Cygwin applications such as winws.exe should also work on Windows Vista.
In addition, for users running Windows Vista and/or older CPUs (and even Celerons and Pentiums produced before 2021), Second System now incorporates basic AVX emulation covering the instructions vmovaps, vmovups and vzeroupper. These instructions are sufficient for running some installers compiled with AVX instructions, such as the Ollama installer; more instructions will be implemented soon.
Windows 8.1 is still being tested; there are a few complications remaining with the API set structure in the operating system. When it is sufficiently stable and running the latest Chromium browsers, its release will be uploaded.
Comments
I have determined that some MSVC 2015-22 runtimes are inconsistent in terms of DLLs offered. The latest release of Second System should resolve that and another issue that was discovered when running the interpreter.
win32
2025-11-05 18:20:28 +0000 UTCPython 3.10.11 doesn't seem to work on Windows 7. It worked fine with vxkex, but not with this. https://imgur.com/a/4b32zAb
Ham Burger
2025-11-04 13:44:14 +0000 UTCYou still haven't fixed the Sims 4! It doesn't start, even the DX9 version. When will you look into it?
Andrey
2025-10-17 15:06:08 +0000 UTCI love being able to watch disney and hulu on windows 7 again I just installed Chrome on windows 11 and then moved it over to the windows 7 machine and everything just worked with second system installed. On vista however drm content does not work at all but chrome will still work great as long as one can get by without sites like spotify web player that require widevine for drm protected content.
kevin sahm
2025-10-05 10:38:38 +0000 UTC๐ซก
2LENSFLARE4U
2025-10-03 20:07:53 +0000 UTC
