First off, I guess the title of the topic can sound a bit enigmatic and I probably have not called it right. Anyway, the problem is that I remember I read somewhere about nice tool that is in Windows I think. The point was that I could give my program to someone, this person then runs my program and when it crushes, that person could use some Windows program for making a dump file that would contain all debugging data. That person could then send me that file back and I could recreate exactly where the program crushed on the computer of that person. I think there was even a nice youtube video showing the whole process. Could anyone point what I am looking for?

Yes, that's it!
I also found it here: http://kb.acronis.com/content/6265
Info on how to use VC++ to investigate a dump is here http://msdn.microsoft.com/en-us/library/fk551230.aspx but it's a horrible shame it doesn't work with Express version :/
Anyway, thanks mrbastard