I've recently been tasked with cleaning up our Windows Server 2008 (Web Edition) server's website data folder. 

There are over 50 sites hosted on this particular box, so I'm looking for an easy way to scan the the data folder, along each child folder to determine where the MB hogs are hiding. 

On my development machine I use [WinDirStat](http://windirstat.info/ "WinDirStat"), but I'm not sure that this would be the best solution on a production server? 

How would you go about it?