Hi Mark
1. The warnings that you are seeing after Postscan are not an issue I think, they are mostly some logs which were not copied to the ThinApp project of your application (probably because access is denied as some process from the application is running and using them).
2. The error that you are seeing regarding hh.exe during the build is happening probably becuase it's a 64 bit binary (and ThinApp 4.7.3 doesn't support 64 bit binaries), in any case, please open the package.ini file in the project folder (the folder that contains the saved ThinApp project of Oracle 10g, generated due to the capture process) and look for section [hh.exe], and add "Disabled=1" under it and then try the build again by running build.bat.
Thanks.