opening dos program

March 27, 2009 at 12:52:12
Specs: Windows XP
I have a dos program that was created a very long time ago to convert a file from an txt (from an AS400/db2) to a csv and putting the fileds in a specific order and opening in excel. This would get the file ready for import into a program we use on our shop machines. When the dos pgm was created the machine program required a key on the back of the machine. Since the that program was upgraded to run on a network and no longer requires a key, this dos program is throwing a HLVDD error. I would like to see and understand how this dos program is kicking this error. How can I 'see' this program so that I might edit it? I can only 'open' it which causes it to run. This program is running on an xp pro machine

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March 27, 2009 at 14:07:11
What do you mean by "opening the DOS program"?

Maybe you can use debug or a hexadecimal editor to view its internal structure, but you face a pure binary file as any executable is. To get it disassembled is not an easy job and more you have to know what language was used to code it.

At first sight based on what you post I suppose it is trying to access a port, operation forbidden under NT kernel systems as XP. A workaround may be to run the application inside a virtual maxhine like Virtual PC 2004, but more info is needed and result is not guaranted.

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