[Bug 6540] New: Some installers can overwrite the ELF regsvr32 binary

[Wine Bugs]

http://bugs.winehq.org/show_bug.cgi?id=6540

Summary: Some installers can overwrite the ELF regsvr32 binary
           Product: Wine
           Version: unspecified
          Platform: Other
        OS/Version: other
            Status: NEW
          Severity: normal
          Priority: P2
         Component: wine-binary
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

If Wine is installed to a user-writable location, some installers (*cough*ie6)
will happily blow away the native ELFDLL binary and replace it with a PE binary.
Wine doesn't expect this and generates a message about it being corrupted when
an app tries to use it.

Ideally, we should either

a] prevent Windows apps from overwriting certain protected binaries
b] fix the Wine loader so if it finds a PE binary with a .exe.so name, it can
still load it

I prefer [a]