ronknight

var zlib = require('zlib');  
var fs = require('fs'); 

function decompress(inFilename, outFilename) { 
  var unzip = zlib.createUnzip();  
  var input = fs.createReadStream(inFilename);  
  var output = fs.createWriteStream(outFilename);  
  
  input.pipe(unzip).pipe(output); 
}