Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!mcsun!cernvax!chx400!cgch!whkr
From: whkr@ciba-geigy.ch (Hans Kraft)
Newsgroups: comp.windows.ms
Subject: Re: MessageBox problem
Message-ID: <1990Sep11.074217.18928@ciba-geigy.ch>
Date: 11 Sep 90 07:42:17 GMT
References: <1990Sep9.224303.10981@bdmrrr.bdm.com>
Sender: news@ciba-geigy.ch (USENET News Agent)
Organization: Ciba-Geigy AG, Basel, Switzerland
Lines: 11
Nntp-Posting-Host: cgche14

It is correct, that the string constants have near addresses, but the
explicit casting to LPSTR does not change anything, as the function
MessageBoX is prototyped in windows.h, hence the compiler does the cast
automatically. I am posting this, as I had a similar problem recently.
When writing a library I made in one of the library functions an 
enumeration looking for a special window. This failed all the time due 
to wrong segment switching. Now back to the original posting I would
suspect a similar thing, maybe even a missing MakeProcInstance.
In doubt some example source code from the original poster would help.

Hans Kraft (Giovanni Forza)