File extension hpj

Name: System Files

Popularity: 3

Open With: Microsoft Windows Help

What is this hpj file?

Files with the HPJ extension are data files used in the creation of WinHelp help files. HPJ files are a component of a Microsoft HLP file. HPJ files store help information that is used when creating a new help file. Information may be added by third party applications and stored in the HPJ format before being transferred into a HLP file.