Hi Sri,
Thanks for your clarification, Actually I do have version 5.1 not 5, so i did try to write to a flat file and it worked. As I am new to DWH and now a days learning Inforamtica on my own, so sometime I might ask foolish questions also, Please bear with me.
One more thing which got me confused that in the release note of Informatica version 6.2, it has been mentioned that Writing to a flat file is the new enhancement but inndeed it not new feature but enhanced feature, as release note does not clearly distinguish between the new feature and enhanced feature.
ThankU-2-2-2
Raj