TREX and ABAP-Client with SAP Web AS 6.40

Hi!

We want to use the TREX in order to enhance the performance of our own business object searches within our ABAP engine. Therefore I've heard that from ABAP we can use the TREX to search for business objects residing in SAP ABAP stack tables.

Currently we are working with ECC500 and SAP Web AS 6.40.

Has anyone experiences in this area?

Are there any How-To-Guides or s.th. like that?

What is the Software Level prerequisite of SAP Web AS 6.40 Release/Support Package? Or do I need SAP Web AS 7.00?

Thanx for any hints and tips!

By the way: Posted this question in the ABAP forum and got exactly zero replies.

Regards,

Volker