File Extension Library


.H1K File Extension

  • Developer by: Microsoft Corporation
  • Category: System Files

What are .H1K files and how to open them?

Can't open .H1K file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .H1K file.

What is a .H1K file extension?

.H1K file extension is created by Microsoft Corporation. .H1K has been classified as System Files.

.H1K is Keyword index - Microsoft Windows Assistance Platform client help related data

The h1k file extension is associated with the Microsoft Windows Assistance Platform for Microsoft Windows Vista.

An Keyword Index (.h1k) file is used to create the indexes in your Help projects. Similar to MS Help 2.x .HxK file Keywords are defined in the Task Metadata (.h1v) File, rather than in .h1k files. There are four types of project-level indexes that must be included in a Help project.

The Assistance Platform client (HelpPane.exe) is a new Help engine designed for Windows Vista. It is not compatible with any previous versions of Windows. The Assistance Platform client is required to display Help files with the .h1s file name extension.

In Windows Vista, the Assistance Platform client can be customized by OEMs, system builders, and enterprise customers under license agreement, but cannot be used by third-party programs. For more information on customizing the Assistance Platform client, see the Windows SDK.


How to open:

Use Microsoft Windows Assistance Platform to view content of the H1K client help related files.

How to convert:

Probably cannot be converted to anything else.

How to fix problems with .H1K files

  1. You need to update the application that you normally use to open .H1K files. Only the latest version of the software supports the current .H1K file format
  2. You need to check the .H1K file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)