Files with h1s extension are in most cases  related to Microsoft Windows Assistance Platform help engine. An h1s file stores help document.

Detailed description

Software that open h1s file

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H1S file extension - Microsoft Windows Assistance Platform client help document

What is h1s file? How to open h1s files?

File type specification:

System file type icon System file type

h1s file icon: h1s filetype icon

File extension h1s is associated with Microsoft Windows Assistance Platform. 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.

The h1s files are binary files, which contain the help content. They are similar to MS Help 2.x hxs files.

Updated: November 10, 2023

The default software associated to open h1s file:

Assistance Platform icon

Microsoft Corporation logoAssistance Platform  Microsoft Windows software

Company or developer:
Microsoft Corporation

Assistance Platform is help engine for Windows Vista and Windows Server 2008  used to display Help files with the .h1s file extension.

Microsoft Windows icon

Microsoft Corporation logoMicrosoft Windows  Microsoft Windows software

Company or developer:
Microsoft Corporation

A family of operating systems developed by the Microsoft Corp. The first Windows was released in 1985 as a GUI add-on to MS-DOS. MS-DOS based Windows versions were developed to 2000, when was released the last version called Windows ME. Windows based on NT core started in 1993. Windows NT family are developed to these days, the latest version is called Microsoft Windows 11.

Help how to open:

Use Assistance Platform to open .h1s files.

How to convert:

If any export is possible, it would be done with WAP.

List of software applications associated to the .h1s file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open h1s file, edit h1s file, convert h1s file, view h1s file, play h1s file etc. (if exist software for corresponding action in's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting h1s files.

Software that open h1s file - Microsoft Windows Assistance Platform client help document

Programs supporting the exension h1s on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about Assistance Platform for open h1s file action.

Microsoft Windows:

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