Directory recursive walking

[dog2002 via Digitalmars-d-learn]

I need to make some operations with all the files in a directory 
and subdirectories. Currently, I do it like this:

import std;
void DirIteration(string path) {
    try {
        foreach(entry; dirEntries(path, SpanMode.shallow, false)) 
{ //SpanMode.shallow allows skip directories if any error happens
            if (entry.isFile && !entry.isSymlink)
                writeln(entry); //Or something instead of this
            if (entry.isDir)
                DirIteration(entry);
        }
    }
    catch (Throwable) {}
}

void main()
{
    DirIteration("C:\\Users\\angrypuppy\\MyDir");
}

But this method consumes a huge amount of memory (up to 4 GB and 
more). Is there a more appropriate way to walk directories 
recursively that does not consume a lot of memory?