Writing large data to file

[Domain via Digitalmars-d]

I am writing a split-liked tool, and want to write some large 
data (>4GB) to a single file. But this is not possible while 
using std.file.write, at least on windows. And I need dig into 
the source code to find out the reason (Windows API WriteFile 
uses DWORD as the input size). So why not call WriteFile multiple 
times inside write function, or at least return the number of 
bytes has been written, than I can append the left myself.