[Bug 25686] New: uninstaller and appwiz.cpl fails to remove registry entry

http://bugs.winehq.org/show_bug.cgi?id=25686

Summary: uninstaller and appwiz.cpl fails to remove registry
                    entry
           Product: Wine
           Version: 1.3.10
          Platform: x86
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: programs
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

The WINE uninstaller.exe and appwiz.cpl both fail to remove the:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall

registry entry for the program being uninstalled.  Installers such as
InstallShield will not reinstall a program if the registry entry is not
removed.  This forces many uses to use regedit to delete the registry entry
every time an application program needs to be uninstalled and installed again.

Note that both programs curretly have the logic to remove the registry entry,
but it is only done if the attempt to uninstall a program fails and the user
requests the entry be removed.  This is not the way it works on a real Windows
system.  The registry entry is removed upon successfull uninstall.

Both programs contain the function UninstallProgram() which contain three lines
of code that delete the registry entry of a program being unistalled.  This
logic needs to be duplicated for a successfully removal.