PBBrowse 

PBBrowse is a replacement utility for the Object Browser shipped with the PowerBuilder Development Environment. PBBrowse offers a Powerful browsing environment that allows you to examine objects quickly via an easy to use single window display. You can search multiple applications using powerful text matching functions or browse individual libraries or exported source code.
Features:

• View Application hierarchically in tree format.
• Application Statistics Report.
• Browse objects from different versions of PB.
• Enumerated Types Browser.
• XREF Uses and Used By window.
• List Duplicated objects and un-referenced objects.

Home Page PBBrowse http://www.pbdr.com/software/pbbrowse.htm

Good Luck!