conStruct uses the structWSF (both part of the Open Semantic Framework) web services 
endpoints to operate. You can install the full Open Semantic Framework stack by 
using this OSF installation script:

   http://techwiki.openstructs.org/index.php/Open_Semantic_Framework_Installation
                                                                                 

Additionally, you can read the full installation manual from the TechWiki:

  http://techwiki.openstructs.org/index.php/StructWSF_Installation_Guide