[GD-Windows] "Windows - No disk" error

[Pierre T. <pie...@gr...>]

Hi,

I got a report saying one of my programs displayed this error message on a 
WinXP machine:
http://www.consumingexperience.com/2007/11/windows-no-disk-exception-processing.html

Problem is: I have no idea why. I ran the same program on many different 
machines without ever seeing this dialog box.

At first I thought it would be a simple bug like trying to access a file 
like "c:\somefile.dat" on a machine that doesn't have a C: drive. However I 
made a simple test doing exactly this, and it ran fine.

I can't debug on the client's machine, so I need to guess what's wrong in my 
code.

Any idea? Under what circumstances will the above error message get 
displayed?

Thanks,
- Pierre