"rDeckard" <rDeckard@d...> wrote in message 
news:CAD7FBAE-F45D-4750-A049-90E7F5E581F6@m......
> I'm developing a data transfer application using Visual Studio 6 that 
> detects
> the arrival of data files on a server, processes them and inserts the 
> result
> into an Oracle Database.
> For this app, I've developed a COM component in C++ to detect the arrival 
> of
> certain files and queue them for processing, a file processing 
> out-of-process
> component in VB that uses msxml 4.0, and the main application to handle 
> all
> the components and provide a user-interface, also done in VB. There can be 
> up
> to 5 file-processing components running simultaneously, each in it's own
> process (the public class is single-use), each using a global copy of
> freethreadedDOMDocument40 to temporarily store and process the files, 
> which
> are different for every file processor.
> The storing of the resulting data is done in a different private sub, 
> using
> the global DOM document. A number of tests of the type "if
> IsNull(IXMLDOMElement.getAttribute("Date")) Then..." are done initially to
> ensure that no loss of global data occurs in the msxml objects between
> function calls. The problem is that it DOES ocurr! Most of the time it 
> works
> fine, but ocasionally the attribute variable which should contain date
> information is missing.
> Sorry about the long post, but this is a weird one to describe, especially
> because it pops up randomly.
>
>
> Thanks in advance,
> Dario.