Any advice on how to debug this?

[Medland, Bill]

> -----Original Message-----
> From: Alexandre Julliard [mailto:julliard at winehq.com]
> Sent: Wednesday, July 10, 2002 12:51 PM
> To: Medland, Bill
> Cc: Wine devel (E-mail)
> Subject: Re: Any advice on how to debug this?
> 
> 
> "Medland, Bill" <Bill.Medland at accpac.com> writes:
> 
> > It looks to me like:
> > 
> > comctl32.dll includes a shared data segment.
> > One of the entries in that segment, presumably during the 
> DllEntry, is
> > populated with the address of GetSystemMetrics
> > 
> > A second copy of comctl32 then tries to use that address to call
> > GetSystemMetrics
> > 
> > Unfortunately the second process has user32 mapped 
> somewhere else and so the
> > call goes somewhere weird and things fall over.
> > 
> > Any ideas as to what we can do about it?
> 
> That's a common problem with Win9x dlls. It cannot be completely fixed
> because we don't control the layout of our address space; there are
> some hacks that could be done in the loader to make it less likely to
> happen, but I'm not convinced it is worth the trouble. Our efforts
> would probably be better spent making sure the builtin versions of the
> offending dlls work properly.
> 
> -- 
> Alexandre Julliard
> julliard at winehq.com
> 
Thanks Alexandre.  I guess the lesson is to use NT dlls wherever possible.

Bill