Re: problem with XML DOM 'load' command

From: John Spaith [MS] (jspaith_at_ONLINE.microsoft.com)
Date: 07/14/04 

Date: Wed, 14 Jul 2004 14:49:12 -0700

OK - more questions. Another person on the group is having some problems
with invalid XML and I'm getting suspicious that something in a QFE
someplace else in the OS
has busted MSXML and its exception processing.

(1) Have you installed all the QFE's for CE 4.2?
(2) Have you ever got this to work on CE 4.2 before installing QFE's?
(Don't uninstall QFE's just to see this, because I'm only speculating right
now.)
(3) Which platform are you running this on? CEPC? Emulator? ...?

Thanks 

-- 
John Spaith
Software Design Engineer, Windows CE
Microsoft Corporation
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"Mike Slot" <mslotREMOVETHIS@maesc.com> wrote in message
news:e9hYW$QaEHA.1644@tk2msftngp13.phx.gbl...
> Hi John,
>
> Thanks again for your help. I made sure that I have exception handling in
> the platform.
>
> Unfortunately the registry settings did not change the behaviour. I'll use
> an addition file check before attempting to load an XML file.
>
> btw: I did try LoadXML(BSTR..) as well. This one always generates a gpf
> regardless if the file existing or not.
>
> Thanks
> Mike
>
> I tried the flag
> "John Spaith [MS]" <jspaith@ONLINE.microsoft.com> wrote in message
> news:eZEZR1PaEHA.4032@TK2MSFTNGP11.phx.gbl...
> > These lines of debug out:
> > > Exception ffffffff Thread=83c25df8 Proc=03bdd8a2 'READServer.exe'
> > > AKY=00000401 PC=03fb00ef ESP=1611f088 EA=800c0006
> > > TLSKERN_NOFAULT set... bypassing kernel debugger.
> > > First-chance exception in READServer.exe: 0xE0000001: (no name).
> >
> > Are generated by MSXML itself.  It calls RaiseException(0xE0000001) to
> > indicate to itself that it hit an error, but it also catches this in a
try
> > block.  the TLSKERN_NOFAULT is a setting that MSXML sets in order to not
> > have you be broken into the debugger everytime that the exception
happens.
> > So this exception is on your main thread where you're doing the load.
> >
> > I'm wondering if somehow exceptions may not be working properly on your
> > platform?  That seems so strange though.  When you load up XML that has
> > syntax errors in it, do you also see this problem (this will also cause
> > MSXML to call RaiseException()).  Along this path, you can also try
> setting
> > this registry value to see if it helps - this turns of TLSKERN_NOFAULT
> > stuff.  If your app is hooked up to a debugger you will get exceptions
> > indicated to you inside the debugger, but since they're harmless you can
> > ignore them.
> >
> > [HKLM\Software\Microsoft\MSXML]
> > BreakOnHandledExceptions=DWORD:1
> >
> > No need to rebuild your platform to make this take affect.  MSXML reads
it
> > on DllMain() at load time.
> >
> > Beyond this, however, I really don't know what's causing this.  Hope
this
> > proves helpful.
> >
> > -- 
> > John Spaith
> > Software Design Engineer, Windows CE
> > Microsoft Corporation
> >
> > Have an opinion on the effectiveness of Microsoft Embedded newsgroups?
> Let
> > us know!
> > https://www.windowsembeddedeval.com/community/newsgroups
> >
> > This posting is provided "AS IS" with no warranties, and confers no
> rights.
> > You assume all risk for your use. © 2003 Microsoft Corporation. All
rights
> > reserved.
> >
> > "Mike Slot" <mslotREMOVETHIS@maesc.com> wrote in message
> > news:%23Oy$$%23CaEHA.4032@TK2MSFTNGP11.phx.gbl...
> > > Hi John,
> > >
> > > Thanks for your reply. I am using a custom CE 4.2 platform with XML +
> COM
> > > included.
> > >
> > > I tried your code, it is giving me the same problem, this is the
output
> I
> > > get when I try to step over the load function and the file does not
> exist.
> > >
> > > Exception ffffffff Thread=83c25df8 Proc=03bdd8a2 'READServer.exe'
> > > AKY=00000401 PC=03fb00ef ESP=1611f088 EA=800c0006
> > > TLSKERN_NOFAULT set... bypassing kernel debugger.
> > > First-chance exception in READServer.exe: 0xE0000001: (no name).
> > >
> > > I am unable to find back which thread is causing the problem (process
> > viewer
> > > is unable to refresh data as long as the application is still
running).
> My
> > > application has only the main thread running at the time the XML is
> > parsed.
> > >
> > > I already implemented a seperate check for the existence of the .xml
> file
> > > before attempting to load it.
> > >
> > > Thanks for your help,
> > > Mike
> > >
> >
> >
>
>