11.3.7.5 Manually copying and deleting output files
To get rid of any orphaned HTML files left over from a previous conversion run, for a stand-alone project (no links to other projects) it is best to delete all HTML output files before each full conversion, then copy new HTML output files to the appropriate compilation directory after conversion. For large projects, deleting and then recreating the help\html subdirectory is noticeably faster than deleting HTML files one by one.
Do not delete until after all conversions
If HTML output files contain cross references to another project (as in a merge situation), those cross references would be broken if you were to delete HTML files from the project directory, because Mif2Go would not be able to update the missing files. In that situation, update all projects that need updating before you copy HTML files from the project directory to the compilation directory; and delete HTML files from the project directory only when you start a full conversion of every project involved.
> 11 Generating JavaHelp or Oracle Help > 11.3 Setting up a JavaHelp or Oracle Help project > 11.3.7 Creating a directory structure for JavaHelp / Oracle Help > 11.3.7.5 Manually copying and deleting output files