[Bug 52544] New: %__APPDIR__% and %__CD__% variables support

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=52544

Bug ID: 52544
           Summary: %__APPDIR__% and %__CD__% variables support
           Product: Wine
           Version: 7.1
          Hardware: x86-64
                OS: Mac OS X
            Status: UNCONFIRMED
          Severity: minor
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]

I'm not able to easily update to 7.2 because I'm on a mac and am largely
dependent on https://github.com/Gcenx/homebrew-wine but I tested myself in Wine
6.0 and had a friend using Linux test in Wine 7.1, and it seems unlikely that
this was fixed in the 7.2 update.

It seems like the %__APPDIR__% and %__CD__% path variables don't work in Wine?
See the "undocumented" section of https://ss64.com/nt/syntax-variables.html

Example:
wine cmd.exe 
echo %__APPDIR__%  ->  just prints "%__APPDIR__%"

On my windows machine, "echo %__APPDIR__%" prints "C:\Windows\SysWOW64" or
"C:\Windows\system32" depending on which version of cmd.exe (32/64 bit) was
invoked.