XI Java proxy as DC

Hi all!

I am trying to write a Java proxy for XI as a DC, i.e. using JDI development in a track. However, I do not seem to have the necessary .sca files. I have, of course imported the usual suspects (SAP-JEE, SAP_BUILDT and SAP_JTECHS), but in order to build the proxy I need the following libraries :

  
  com.sap.aii.proxy.xiruntime
  com.sap.aii.af.sdk.xi
  com.sap.xi.util.misc
  com.sap.guid

Only the last two are included in the standard .sca files and I have no idea where to get an .sca for the others.

Thanks in advance,

Thorsten