Custom Library allows extensions of oracle application modules with out modifying module code
Custom Library can found in $AU_TOP/res/plsql directory.
After designing & Developing u must replace ur code in custom library.
After ur code has been written, u must compile & Generate the library using oracle forms on the application server ( not the development machine ) & place in $AU_TOP/resource directory.
.plx (executable code) is created when u generate .pll (librarary code) when u generate a library using the forms generator COMPILE_ALL parameter set to ' YES ' .
Cheers,
Bonthu N Reddy.