RE: dos foxpro 2.6 app freezes on Windows 2003 server

From: Vera Noest [MVP] (Vera.Noest_at_remove-this.hem.utfors.se)
Date: 11/10/04 

Date: Wed, 10 Nov 2004 05:51:06 -0800

This is not a problem with NTVDM in Windows 2003, it's a problem
with FoxPro 2.6

This version is simply too old to be able to run on newer hardware
/ OS.

 --
Vera Noest
MCSE,CCEA, Microsoft MVP - Terminal Server
http://hem.fyristorg.com/vera/IT
*----------- Please reply in newsgroup -------------*

"=?Utf-8?B?Q2hyaXN0b3BoZXIgRA==?="
<ChristopherD@discussions.microsoft.com> wrote on 09 nov 2004:

> So no one has a slightest clue about this one? I've seen other
> postings(2 or 3) regarding the same problem so this must be
> something that is wrong in Windows 2003 NTVDM. It would help
> alot if someone knew something about NTVDM and possible changes.
> Also if someone knows if the NTVDM.EXE and NTVDMD.DLL maybe has
> changed in Service Pack 1. I guess some of you MVPs out there
> maybe have a Beta of Service Pack 1 for W2K3, if so an
> indication on versionnumber change would be much appreciated.
>
> I guess also there are some MS people watching these threads,
> doesn't anyone have anything to suggest?
>
> Thanks in advance
> Christopher
>
> "Christopher D" wrote:
>
>> Hi!
>>
>> We have an old DOS Foxpro 2.6 app which freezes on our new Dell
>> PowerEdge 1850 Windows 2003 Terminal Services server.
>>
>> It has worked flawlessly under our old NT4 TSE server for many
>> years. But now we have to move over to this new server.
>>
>> Right now I've only moved over 3 users to be able to test this
>> new server setup. And with these three users active we get
>> about two crashes or freezes a day in total. So it's not
>> frequent. But I'm worried that if I add all 25 users this will
>> escalate. Also the users will not accept one or two hangups
>> per day...
>>
>> I have tried the following and no luck so far:
>>
>> - Removed antivirus software from server
>> - Tried all compatibility modes
>> - upgraded to all latest drivers and BIOS versions
>> - changed registry key to defaultseparatevdm=Yes just to be
>> sure - tried TAMEDos
>> - disabled HyperThreading on server
>> - checked and doublechecked autoexec.nt and config.nt
>> - removed MS04-32 which was said to update NTVDM.dll just to
>> find out that on 2003 it did not :-( but it was worth a try :-)
>> - installed the following patches since I thought that they
>> somehow could help:
>> - installerat följande patchar:
>> Terminal Server stops responding when idle sessions are being
>> ended http://support.microsoft.com/?kbid=828662
>>
>> Terminal Services stops responding on your Windows Server 2003
>> server http://support.microsoft.com/?kbid=832971
>>
>> Windows Server 2003 Terminal Server Stops Responding
>> http://support.microsoft.com/default.aspx?scid=kb;en-us;821467
>>
>> So far nothing has helped, the DOS app freezes at random
>> points. No special events can be connected to the freezing. The
>> users are doing different things and the app can hang anywhere
>> at anytime - no pattern whatsoever. Also nothing in Event Log.
>>
>> We don't have any problems with performance. CPU time is ok and
>> also memory allocation is under control. The app uses 12Mb of
>> RAM and CPU is when working with the app around 5-10%. When not
>> working with it it goes down to 0% as it should. So that's not
>> a problem.
>>
>> Has anybody else seen any similar behaviour in DOS apps under
>> NTVDM?
>>
>> Any input whatsoever is highly appreciated, because I'm really
>> stuck here.
>>
>> Regards
>> Christopher

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