Maximum Binary File Size in Win 2003 & How

Question

I want to handle binary file of 200 GB in VC++ on windows 2003 server. How do I do ? Iam unable to go beyond 4GB.

Sam Hobbs · Answer

And what happens when you go beyond 4GB? What function gets an error and what error is it?

rajan daniel · Answer

Iam using Createfile.

Sam Hobbs · Answer

I mean which of the functions / classes that I listed are you using? You have at least two choices. If you want to use a C++ standard class then you can search the internet for sample code for overloading the class to allow large files. I know it exists because I found some a few ago but I don't know where now; I would have to search again. Another choice is to use the Windows API directly. I don't want to waste my time giving details of any of that it you are not going to use it.

rajan daniel · Answer

Using VC++ on visual studio, server ML570G4 with 4 GB RAM, 1 TB disk

Sam Hobbs · Answer

Using what? In C++ you can use C-style streams or C-style low-level IO or in C or C++ you can use Windows IO using CreateFile and related functions (which everything else uses under the hood) or you can use C++ standard classes. So it depends on what you are using. I think the answers are the same as what I found when I searched many years ago; it is just a matter of searching but I will wait until you are specific about what you are asking about.