Support 32-bit prefixes

[mat8913]

64-bit prefixes will still be created by default, this just allows Proton to use preexisting 32-bit prefixes.

Fixes #449.

[tingvarsson]

What are the use cases for a 32bit prefix?

[Elkasitu]

IIRC some "old" games (such as fallout 1 and fallout 2 just as an example) don't run well or at all in a 64bit prefix because the libs / frameworks required to execute them were originally created for 32bit OS and the 64bit version of these libs don't install properly on wine, or something along those lines.

[tingvarsson]

Both fallout 1 and 2 works for me on 64bit. However GOG and wine-staging if that matters for those specific games.

[ahallrq]

@tingvarsson .NET is another good reason. Some games use it and the workarounds for installing it into 64bit prefixes can be a bit of a pain.

[Ruedii]

It would be better to just create a proper install script.

.Net now installs better on Wine64 due to Microsoft releasing the necessary 64bit/32bit universal installers for .Net. (available at their .Net developer website.) It might be desirable to create scripts, or request from Microsoft the right to distribute a custom runtime installer.

Microsoft is really trying to push .Net and getting .Net based games dependent on Windows-Specific .Net routines running out of box on Steam Play (and thus on the next generation of Steam Machines) will be a big plus for that.

This is still a temporary solution. A more permanent solution is a more complete form of wine-mono that can run almost anything that runs on .Net.

[Zero86Sk]

i beleave WMP10 and WMV codecs are usable only under wine32 prefixes

[elgabo86]

The Sandbox Evolution (‎466940,F2P) can't connect on network in a 64bit prefix

[Arucard1983]

@tingvarsson .NET is another good reason. Some games use it and the workarounds for installing it into 64bit prefixes can be a bit of a pain.

Specially with 32-bit games that use the 32-bit .NET framework, unless someone fix the Wine's WOW64 to make such libraries to work.

[mat8913]

I've updated the pull request for proton_3.16

[nsivov]

I believe fixing remaining issues with 64-bit prefixes instead is preferable.

[ghost]

I believe fixing remaining issues with 64-bit prefixes instead is preferable.

Why? There are a magnitude more problems with 64-bit prefixes than there is with maintaining code for 32-bit prefixes (judging from this PR doesn't seem like a lot.) Example: some games are currently broken because Winetricks can't install quartz in a 64-bit prefix. The fact that problems like these keep cropping up is why Winetricks suggests you try a 32-bit prefix if installing something in a 64-bit prefix doesn't work.

[Tank-Missile]

Could this be updated to work with the current version of Proton? I tried every trick in the book to get a 32-bit prefix working on my own, but I had no success.