martypc.exe do nothing when opened

[Sleora]

Describe the bug
When I double click on "martypc.exe" nothing happens, even running it through cmd.exe return nothing and I checked in task manager and it doesn't even appear in there. However, when I run "martypc_launcher.exe" it opens correctly and let me change settings but when I click on 'Run' it show the error:

thread 'main' panicked at
crates\binaries\martypc_eframe\src\input\gilrs_g...:33:
called `Result::unwrap()` on an `Err` value:
Other(FailedToLoadDll(NoDLL))
note: run with `RUST_BACKTRACE=1` environment
variable to display a backtrace

I'm not super knowledgable in error code but I might be missing a DLL... which one it is I don't know and I don't know what should I do with RUST_BACKTRACE=1. What's an environment variable?

To Reproduce
Steps to reproduce the behavior:

1. Go to the main martypc folder
2. Click on 'martypc.exe', nothing happens
3. Go in 'martypc_launcher.exe'
4. Click on 'Run'
5. See error

Expected behavior
The emulator refuse to boot.

Screenshots
If applicable, add screenshots to help explain your problem.

Environment

• Windows 7, x64
• Intel Core i5 2500K
• NVIDIA GeForce GTX 650

Build info

• MartyPC_win7_0_4_1_20250531

Additional context
I'm currently using a Windows 7 that has a few years now but I still find a few programs that are missing DLLs here and there, so it's not that surprising that it return me a missing DLL error.

[dbalsom]

The last Windows 7 build was https://github.com/dbalsom/martypc/actions/runs/16726571600 can you try that one?

Unfortunately I can't really support Windows 7 issues. Someone was kind enough to contribute a CI. If it works, great, if not, I really don't know how to fix it.

[Sleora]

How do I download that one? I'm not really that familiar with how github works.

Maybe I could download DLLs or even a whole library to see if that could work. Is there a way to know which one are called when trying to run it?

[dbalsom]

Oh, it says expired :( I didn't know artifacts expired.

I'm pretty sure it's trying to load a DLL that doesn't exist in Windows 7, and won't just work in Windows 7 if you were to copy it over. It's related to gamepad support. This was fixed at some point by falling back to xinput on windows 7, but then the CI broke.

[Sleora]

Ah... well that a shame... I still have my laptop that run Windows 11 but I don't like using it much and my main PC (this one) is a sleeper PC in an old beige IBM NetVista case and displaying a CRT screen, so I have the vibes ready for old systems.

[dbalsom]

Sorry :(
I don't intentionally try to not support Windows 7, but the mainline Rust toolchain doesn't support it anymore. If the last Win7 release doesn't work I suppose I should remove it so people don't get their hopes up.

[Sleora]

It no problems, it's mainly to test things before using them on my 5150 (thanks dad!) and how well it could play XDC videos (I made A LOT of them) since MartyPC is one of the most accurate I have tested so far.