"austirob" <austirob@discussions.microsoft.com> wrote in message
news:F7DF396B-F1D1-458A-87A5-81248888EC4E@microsoft.com...
> Hi,
>
>
>
> Any help with this problem would be greatly apprecicated as it is driving
> me
> insane.
>
>
>
> I have an ASP.NET 2.0 Webservice running on Windows server 2003. The
> webservice calls a function in a legacy (unmanaged) C++ .dll which takes
> an
> XML string and returns an XML string. It all works rather nicely most of
> the
> time.
>
>
>
> However, if the service isn't used for a while, when I call the function,
> I
> get the old "Unable to load DLL" error. If I then restart the webservice,
> it
> starts working again.
>
>
>
> Here is my dll import declaration:
>
>
>
> [DllImport(@"C:\GridVersion\CLibDll.dll", CallingConvention =
> CallingConvention.StdCall)]
>
>
> public static extern void calculateRequestFromDotNet(StringBuilder
> request,
> StringBuilder response);
>
>
>
>
>
> Any ideas on how I can even begin to resolve this issue would be
> really,really appreciated.
>
>
>
> Many thanks
>
>
>
> Rob
>