[Bug 39111] New: Reinstalling Nvidia Physx adds path multiple times to 'HKLM\System\CurrentControlSet\Control\Session Manager\Environment\Path'

https://bugs.winehq.org/show_bug.cgi?id=39111

Bug ID: 39111
           Summary: Reinstalling Nvidia Physx adds  path multiple times to
                    'HKLM\System\CurrentControlSet\Control\Session
                    Manager\Environment\Path'
           Product: Wine
           Version: 1.7.49
          Hardware: x86
                OS: Linux
            Status: NEW
          Keywords: download, Installer
          Severity: minor
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Steps to reproduce the problem:

1. create a new prefix, install Physx: 'winetricks physx'. 
Open regedit and see that 'C:\Program Files\NVIDIA Corporation\PhysX\Common'
was added to the PATH registry key under
'HKLM\System\CurrentControlSet\Control\Session Manager\Environment', and it was
added only once.
2. start 'wine uninstaller', select Nvidia Physx entry and click <Modify...>.
In the Nvidia maintenance tool select <Repair>. It should report back that
Physx was (re)installed successfully.
3. open regedit and see that the same path was added again, so it is present
twice.

I tried this on Windows XP running in a VM, and reinstalling Physx added the
path only once.In Wine if you reinstall Physx multiple times, the path will
also be added multiple times.

wine-1.7.49-143-gcfbc37c