Configuration Oracle Forms 10g

Good afternoon.

First of all, thanks for your cooperation.

I explain my scenario. I'm on a Windows 7 32-bit. Oracle Developer 10g (with Forms [32-bit] Version 10.1.2.0.2)

The system requires the installation has a .OLB and a .PLL to be recognized the previously generated forms.

It should be noted that these forms were developed in Forms Version 9.04.

In principle, the version 10 recognizes FORMS .OLB but not .PLL.

My question: Is it possible for .PLL have been developed for a version of Forms (9.0.4.0.19) are not compatible with the Forms [32-bit] Version 10.1.2.0.2)?

If that were so, how to fix it?

thank you very much and sorry for my bad English.