> Actually, I made the distinction between the 'int e' and the 'unsigned 
> e' consciously. When using 'errno', using an 'int' is correct. When
> using GetLastError(), I would have used a win32 DWORD if there was a 
> format sequence that correctly and portably formats it, so I 
> chose 'unsigned' as one that IMHO most likely matches it. 

That's all fine, but why do you need a variable named "e" in the first
place? Can't you leave the code as it was before?

> That is also 
> the reason for the two different error messages, otherwise I don't 
> think it makes a big difference.

Introducing an unnecessary variable should be avoided; this is just
cruft that accumulates. Please remove both variables.