File Extension HLP

Writer:   |   Last Updated: December 05, 2018

Microsoft Silver

HLP File Summary

Three known software programs (notably, Microsoft Windows developed by Microsoft Corporation) are related to the HLP file extension. In addition, they are categorized under a single primary file type, described as the Windows Help File format. HLP files are traditionally categorized as System Files.

Both desktop and mobile devices enable you to view and (sometimes) edit these files, depending on the software used. The HLP File Extension carries a Popularity Rating of "Low", meaning that these files are scarcely found in most user's file stores.

Although there is a lot more to know about HLP files, those are the most important details of these types of files. If you are having trouble opening these files, or would like more detailed information, please see our comprehensive information below.

Low
Popular
8123
Order

/ 11690

Active

File Status

5

December

2018

Revised

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Sorts of HLP Files


Dominant HLP File Type

.HLP
Formatting:.hlp
Class:Windows Help File

Help file used by Windows Help, a tool used to create help files. An HLP file contains indexes for Windows programs and Windows operating system.

Author: Microsoft Corporation
Kind:System Files
Location: HKEY_CLASSES_ROOT\.hlp

Software Programs That Open The Windows Help File:


Microsoft Windows by Microsoft Corporation

Windows

Adobe RoboHelp by Adobe Systems Incorporated

Windows
Mac

Microsoft Windows Help by Microsoft Corporation

Windows

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HLP Usage


Top Windows Operating Systems

7 (45.73%)
10 (44.56%)
8.1 (5.41%)
XP (2.79%)
8 (0.97%)


Understanding HLP Issues


Common Problems Opening HLP Files

Microsoft Windows Not Present

If you attempt to load your HLP file, you experience a message such as "Can't Open HLP Files". Customarily, this means that Microsoft Windows is not installed on %%os%%. The OS won't know what to do with your HLP file, so double-clicking to load the file doesn't work.


Tip: If you don't have Microsoft Windows installed, and you know of another program to open your HLP file, you can try opening it by selecting from the programs listed under "Show Apps".


Obsolete Version of Microsoft Windows

Occasionally, you might have an outdated version of Microsoft Windows installed that's incompatible with your Windows Help File type. Visit the Microsoft Corporation website to download (or purchase) the latest version of Microsoft Windows. Your Windows Help File file was probably created by a newer release of Microsoft Windows than what's currently installed your computer.


Tip: Right-clicking on your HLP, then clicking "Properties" (Windows) or "Get Info" (Mac), can provide clues about your file version.


Primarily, problems experienced when opening HLP files are due to having the incorrect version of Microsoft Windows installed on your computer.


Associated Difficulties Loading HLP Files

Even with the correct version of Microsoft Windows installed, you can still experience difficulties opening HLPs. There can be other issues - unrelated to software - preventing you from opening HLP files. Additional factors include:

  • File references in the Windows Registry for HLP are wrong
  • The HLP file description within the Windows Registry was removed
  • Partial installation of Microsoft Windows that did not fully complete
  • HLP file corruption
  • The HLP is infected with a virus
  • Device drivers of the hardware associated with your HLP file are corrupt or out-of-date
  • Windows has inadequate resources to open your Windows Help File file

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