ASP.NET and mapscript - unable to load DLL

[Abe Gillespie]

Did you move mapscript.dll to system32 as well?  The only DLL that
should be in your bin dir is mapscript_csharp.dll.

Suggestions:
1.  Write the mapfile by hand with the file streaming objects?
2.  Wrap the MapServer CGI executable with ASP.NET (I think someone
did just this some time ago).
3.  If this is all you're doing, you *might* be able to get away with
it in ASP.NET.  See if there's a way to protect a section of ASP.NET
code with a semaphore or similar construct.  Is there something that
protects in the virtual thread environment?

-Abe

On 8/19/05, Mike Boos <mboos at augsignals.com> wrote:
> I tried moving the dlls to the system32 directory, but that doesn't have
> any effect (am I missing any other dependencies?)
> 
> Unfortunately, I'm kind of stuck with ASP.NET, as that's what the rest
> of the site relies upon. I'm trying to improve the present setup which
> involves sending a request to a C++ CGI program which writes a map file
> to the hard disk and forwards the request to mapserv.exe. If you'd ask
> me, that's a bit of a kluge, and without Mapscript, all I could do to
> improve on that would be to take out the C++ program and have the map
> file generated from within the ASP.NET program itself. Can you think of
> a better way to accomplish the same task?
> 
> Mike
> Abe Gillespie wrote:
> 
> >Placing the depended-on DLLs into the bin dir will do nothing.  I
> >assume you're on a windows box.  Therefore the easiest way to take
> >care of this is by placing all the DLLs (except for map_script) into
> ><windows>\system32 where <windows> is the system windows directory
> >(c:\winnt, c:\windows, etc.).
> >
> >With that said, you're entering a world of pain by using C# map_script
> >in ASP.NET.  Much of the map_script DLL is thread unsafe, that
> >combined with ASP.NET's supremely weird threading model (e.g. virtual
> >threads), you're going to encounter a plethora of problems.  This is
> >why you almost never see MapServer + ASP.NET discussion threads.
> >
> >To get more info, search the archives.  You should find ten or so
> >messages about this topic.
> >
> >-Abe
> >
> >On 8/18/05, Mike Boos <mboos at augsignals.com> wrote:
> >
> >
> >>Hello
> >>
> >>I'm trying to run Mapscript using the SWIG C# bindings on an ASP.NET
> >>server. I compiled the 4.6.0 version of MapServer and have placed what I
> >>believe to be the appropriate dependencies (mapscript_csharp.dll,
> >>mapscript.dll, libmap.dll, bgd.dll, gdal12.dll, pdflib.dll) in the bin
> >>directory on my server. It is appears to be finding
> >>mapscript_csharp.dll, but is having trouble finding mapscript.dll or one
> >>of its dependencies. I am seeing the following error message:
> >>
> >>
> >>  Server Error in '/' Application.
> >>
> >>
> >>    /Unable to load DLL (mapscript)./
> >>
> >>* Description: *An unhandled exception occurred during the execution of
> >>the current web request. Please review the stack trace for more
> >>information about the error and where it originated in the code.
> >>
> >>* Exception Details: *System.DllNotFoundException: Unable to load DLL
> >>(mapscript).
> >>
> >>Am I missing a dependency? Or do I need to set some configuration option
> >>or place the files elsewhere?
> >>
> >>Thanks!
> >>Mike Boos
> >>
> >>
> >>
> >
> >
> >
> >
> >
> 
>