Note: Pro*COBOL Precompiler for Windows release 1.8.77 is now automatically installed with the Programmer installation type of the Oracle9 i Client top-level component. You do not need to use the Custom installation type of the Oracle9 i Client top-level component. If you simply want to migrate a release 1.8. X application to release 9.2.0 without using any of the new features of Pro*COBOL release 9.2.0, but the application does not precompile successfully, then report the problem to Oracle Support Services. Table 3-2 Header Files Header File Description oraca.cob Contains the Oracle Communications Area (ORACA), which helps you to diagnose runtime errors and to monitor your program's use of various Oracle resources. Oraca5.cob ORACA5 is the COMP-5 version of ORACA. Sqlca. Patch Hunk Failed Different Line Endings. cob Contains the SQL Communications Area (SQLCA), which helps you to diagnose runtime errors.