Single sign on using windows user id to SAP Enterprise portal (with different user id)
We would like to do single sign between windows user id and SAP enterprise portal (with different user id). Is that possible using standard SAP ? or do we have to use third party tools to achieve the same? If the above is not possible, we could potentially use the same user id's on portal / window (but our backend SAP systems will have different user ids).
We are on enterprise portal version 7.01 SP11.