DSXchange

hi,
i am very new to custom build stages, so where can i get this guide

It's in the Docs folder with all your other manuals.
C:\Program Files\Ascential\DataStage*\Docs
It's actually called Parallel Job Advanced Developer's Guide but it should be first in a name-ordered list as advpx.pdf is its file name.

Hi tsanan, Welcome aboard!!! :D
If you have installed your client in your PC, you can find the necessary guids under Start-->All Programs-->Ascentail Datastage-->Online Manuals.
Which actually resides under the path what Ray, had given.