iview Window Features not working - trans iview

Hello Techies,

I want to create a transaction iview without portal or browser header. since we are use wingui it just should look like a plain sapgui.

I have set the "open in separate window" option and

added the following to the window features.

'status=no,toolbar=no,menubar=no,location=no,resizable=yes,scrollbars=yes'

If I open the window in a separate window i still have the header.

Any suggestion anyone.

thnx

Frederik