AdiIRC

Maybe check your windows event viewer for clues.

Does it work if you download the old beta from https://adiirc.com/download.php?b=true ? (just replace AdiIRC.exe with one from there)

I tested following versions:
AdiIRC64_45_2023-08-18
AdiIRC64_45_2022-02-20

Both show the same problem. They quit immediately after startup.

I started them via cmd, to capture error messages in the prompt, but: nothing.

The eventlog within the windows-sandbox is disabled.

Can this be the result of a missing .Net runtime? Does it need a specific version?

It needs .NET 4.5, but it also has dependencies on various windows components, not sure if that could be related.

Is there a startup parameter to generate a debug logfile?

You can create a debug.txt file in your AdiIRC config folder, all .NET exceptions are saved there, but if it's a hard windows crash, it can't be logged since it happens outside .NET.

I tried that, but: no luck. The file stays empty.
Seems to be something outside .NET indeed.

Have you tried it in Windows-Sandbox?
Can you reproduce the bug?

I have not used the windows sandbox since It needs hyper-v enabled, but I am using a different hypervisor for various VMs.

Have you tried earlier versions of AdiIRC?

One cause of AdiIRC not starting could be the sandbox doesn't allow AdiIRC to unpack it's API files. You could try manually adding https://adiirc.com/AdiIRCAPIv2.dll and https://adiirc.com/AdiIRCAPI.dll to the config folder. Just an idea.

Also make sure you are using 32 bit on 32 bit windows and 64 bit on 64 bit windows, not sure what bits the sandbox runs it. You could also try the "ARM" build on the download page, it does either 32/64 bit automatically.

Interesting...
I tried the ARM Version in the sandbox and it threw a warning:

Is it possible, that some part of the software still needs .Net 3.5?

It's compiled against 4.5, can't really think of why it would want to install 3.5. Specially since the only difference between that version and the 32 and 64 bit, is the "ANY CPU" target instead of 32 or 64. Very strange indeed.

Disregard that, just looked again, it's compiled against .net 2.0, probably because of some limitations on windows ARM at the time. My bad.

ok.

Well, I think i got it:
I tried to start Powershell in the Sandbox, but that behaves exactly like AdiIRC. It seems to start and immediatly quits.
Then I compiled a simple .Net 4.5 Winforms-Hello-World in x86, x64 and Any and tested it in the sandbox.
And suprise: It worked, but only as x86!
Then I tested the 32bit version of AdiIRC and it worked to.

Until last week I definetly used AdiIRC64_3.9.
I don't know what changed on my system.
I will just use 32bit from now on.

Thank you for your work!!!

That's really interesting, does native 64 bit programs work?

Wonder if the sandbox is accidentally creating a 32 bit hyper-v vm.

Glad you figured it out, 32 bit AdiIRC is perfectly fine.

Yes. Native Apps like Notepade++ 64bit work.
I try to play around with it in next days to get some answers...

Very interesting, thanks for looking into this.