While searching for an answer to the question - How to open the H_ file? - you probably found websites, which offer software that was able to open any file extension. Do not be fooled, there is no one program that will allow you to work with any file extension, including the H_ file. Each program contains a different type of data and you need specialized software to properly work with the H_ file. Here is a list of programs that are designed to work with the H_ file - remember, these applications are able to open at most a few file extensions, they are designed to work with a specific data type.
| File type | Microsoft Winhelp Compressed |
| Developer | Microsoft Corporation |
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If after installing the program from a list, you still cannot open a file with the H_ extension, the reason may be that the file is damaged. The solution may be to find a new copy of the H_ file you want to open
In this case, the easiest way is to use the tool built into the operating system for association of the H_ file with applications to support it. Double click on the file you cannot open - the operating system will display a list of programs that are likely to work with your H_ file. Choose one of them, or select the location on a disk where you installed one of the applications from our list. Windows should then open the H_ file using the program installed earlier.
Entries containing links of the H_ file extensions with applications is located in the HKEY_CLASSES_ROOT. If you do not know how to get to the Windows Registry, or how to make changes in it, ask a specialist for help. Lack of knowledge on the subject may cause irreversible changes on your computer.
There may be a situation when a computer virus passes itself off as the H_ file. In this case, such a file will definitely not be opened. Download a good antivirus program and scan the H_ file mentioned. If the antivirus application detects malicious data, it may signify that the H_ file is infected.
| HP1 | HP Graphics Language Plotter |
| HCS | NHP ESubmission Builder Submission Package |
| HTD | Adobe ExtendScript HTML |
| H86 | CP/M |
| HANDLEBARS | Handlebars Template |
| HIPS | Bitmap |
| H4E | POD HD400 Preset |
| H2DRUMKIT | Hydrogen Drum Kit |
| HOB | Star Trek Birth Of The Federation Ship Graphic Data |
| HXH | Microsoft Help Merged Hierarchy |
