Understanding .cmp , export and import in Sharepoint 2013

Hi,

I was doing some R&D to understand export functionality , found a very good blog -
http://techtrainingnotes.blogspot.com/2007/12/exploring-sharepoint-cmp-backup-files.html

Interestingly the core concept still holds true!!
ZipFile which comes with .net Framework 4.5 can not read this .cmp format :( .

their specification is way different. So still use Microsoft.Deployment.Compression.dll.

Enjoy