What's the H1S File?

Reporter:   |   Amended: December 05, 2018

Microsoft Silver

H1S File Summary

The H1S File Extension has one primary file type, Windows Assistance Platform Help File format, and can be opened with three distinctive software programs, with the dominant related application developed by Microsoft Corporation (Microsoft Windows software). H1S files are traditionally categorized as System Files.

The H1S File Extension can be viewed on the Windows operating system. They are supported on both desktop and mobile devices. The H1S File Extension carries a Popularity Rating of "Low", meaning that these files are scarcely found in most user's file stores.

To learn more about H1S files and their associated software applications, please see the information below. Plus, we provide a basic troubleshooting guide to solve problems with opening H1S files.

Low
Demand
10026
Order

/ 11690

Active

File Status

5

December

2018

Edited

FileViewPro Opens H1S Files

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Kinds of H1S Files


Primary H1S File Association

.H1S
Extension:.h1s
Group:Windows Assistance Platform Help File

An H1S file is a help file introduced in the Windows Vista platform and supported in Windows 7. It is a compiled help document used by Microsoft and OEMs for producing help documents, but not used by third-party software developers.

Created by: Microsoft Corporation
Kind:System Files
Registry Key: HKEY_CLASSES_ROOT\.h1s

Software Programs That Open The Windows Assistance Platform Help File:


Microsoft Windows by Microsoft Corporation

Windows

Microsoft Assistance Platform by Microsoft Corporation

Windows

xHelpMarkup by Ulrich Kulle

Windows

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H1S Popularity


Popular Devices

Desktop (84.34%)
Mobile (14.29%)
Tablet (1.37%)


Troubleshooting Problems Opening H1S Files


Frequent H1S Opening Issues

Microsoft Windows Not Present

When you double-click your H1S file, you may see a dialog box from your operating system stating that it "Cannot Open This File Type". If this is the case, it's usually due to the fact that you do not have Microsoft Windows for %%os%% installed on your computer. The OS won't know what to do with your H1S file, so double-clicking to load the file doesn't work.


Tip: Another H1S-related program can be selected to open the file by clicking "Show Apps" and finding the application.


Wrong Version of Microsoft Windows is Installed

It is possible that your version of Microsoft Windows isn't able to open your Windows Assistance Platform Help File file due to incompatibility. If you've got the wrong version of Microsoft Windows installed, you'll need to install the correct version. This problem is most common when you have an older version of the software application, and your file was created by a newer version that it cannot recognize.


Tip: If you right-click on your H1S file, then select "Properties" (Windows) or "Get Info" (Mac), you can obtain hints about what version you need.


Summary: Not having the right Microsoft Windows version on your computer can cause problems opening H1S files.


Associated Difficulties Loading H1S Files

Errors opening Windows Assistance Platform Help File files can still occur even with the latest Microsoft Windows software installed on your computer. Other H1S opening errors can be created by other system problems inside of %%os%%. Other contributing causes:

  • Windows Registry H1S file paths that are incorrect
  • Mistaken removal of the Windows registry H1S description
  • Incomplete or bad installation of a software application associated with the H1S format
  • H1S file corruption
  • The H1S is infected with a virus
  • Hardware associated with H1S has outdated drivers
  • Windows has inadequate resources to open your Windows Assistance Platform Help File file

Quiz: What file extension was created by Adobe Corporation in 1992?









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