After upgrade W98 to W2K - NTVDM error when run Dos base program

[thuynguyen]

Hi,
I am recently upgraded a W89 PC to w2K - it worked fine with almost all programs that installed under W98.

But there is a problem when I run a DOS base program, it displayed with error as :

"The NTVDM CPU has encountered an illigal
instruction, CS:2565 IP:94fa OP:8f21Oe 04 56
Choose Close to terminate the application.

With the same DOS base program, I run it OK on 3 different machines (with OS is W2K, SP4, NTFS file system - with the same settings as the machine I have problem runnung DOS base program)

What did I do wrong?
Please help.

 

[GreenMilo]

I have a very large LOG full of messages relating to NTDVM errors. This type of message has become the bane of my life because I have a number of batch programs used to control my workstation. After a rather lengthy series of tests and much re-building of W2K environments my problems appear directly related to the Virus Protection. Now if you look at the Service Pack 3 for W2K you will find that NTDVM has a known problem with Trend (I use Trend). However, it can not be that simple because I have SP4 installed and if I want to use NTDVM I can not use the AV. My suspicion is that lurking somewhere in the dark recesses of the Registry is a conflict caused by the network drivers.

I have tried approaching the software OEMs involved and their response leads me to hope that I can get a little bit more info from people like yourself! I hope that something in my comments can help you.

 

[thuynguyen]

I am not sure what to do, should PC needs to change the settings, may be somewhere in W2K config files or the registry?

 

[joegz]

This is just a guess. Compare the versions of command.com from one system where it works versus where it doesn't work and see if they are the same version.

I am guessing they are not.

joegz
"Sometimes you just need to find out what it's not first to figure out what it is."