title: Unzip too slow for transfer of many files
body: <p>We need to distribute lots of small jpg files to offline systems. Right now, we send it as a 7zip  (or plain zip) which is 800MB (230K files) and use 7zip to unzip it. It is taking about an hour to unzip on fairly large 4 core processors.</p>
  
  <p>Is there a way on windows7 (or win server 2008) to create and unpack a package of files of this size in a more reasonable time frame?</p>
  
  <p>(I will entertain even far out answers such as: put this all in a single CloudDB database as binary blobs and then ship the archive to the target machine, or create a VM, or a virtual disk image - but I will need some pointers to tips on doing that sort of stuff).</p>