Hi Nageswara;

1)  W10 compatibility for PB Apps was first supported in PB 12.1 from Sybase

     SAP did a little more work in this area in releases 12.5.2 / 12.6 - but, it was still not compliant

2) W10 compliance for the PB IDE & Apps was first achieved in Appeon PB - release PB2017 (GA June, 2017)

HTH

Regards ... Chris

Not officially. It might work for your app, it all depends on what it is doing. You need to have someone do a full QA test of the app.

PB 9 hasn't been officially supported at all for more than ten years so if you find a show-stopper, your only option is an upgrade to PB 2017.

Please ignore what Chris said it is totally false.  It is impossible PB 12.1 supported Windows 10 even for apps as PB 12.1 was released years before Windows 10.  According to the latest SAP documentation, not even PB 12.6 supported Windows 10.  It only went as far as Windows 8.1.  

PB 2017 is the way to go if you want piece of mind about compatibility and to be on a supported version of PowerBuilder.  In addition to Windows 10 support, by upgrading you get the following additional features: https://www.appeon.com/products/power-builder/powerbuilder-upgrade-benefits.html