I've written an ODBC library that works fine on 
Windows 95 using several different ODBC drivers.  
Today I tried to run it on NT 3.5.  Everything 
works except one (crucial, of course) statement:
sql-fetch, defined below:

(ct:defun-dll sql-fetch ((hstmt sqlhandle))
 :return-type :short
 :library-name "odbc32.dll"
 :entry-name "SQLFetch")

Even this statement works almost all of the time.  
The problem is that when the end of the result set 
is reached, sql-fetch doesn't return an error code 
in the usual manner.  Instead, it blows up, taking 
the lisp environment along with it.  I tried 
changing the return-type to :long, but this didn't 
help.  Does any one have any ideas about what might 
be the problem here?