Varieties of CHW Files

Principal CHW Type

.CHW

File ID:	.chw
File Type:	Compiled Help Index File

This is a type of file produced when elements of .CHM (Compiled HTML Help) files are combined together. It saves the merged TOC (Table Of Contents) and as well comprises CHM file references.

Programmer:	Microsoft Corporation
File Category:	Uncommon Files
Folder:	HKEY_CLASSES_ROOT\.chw

Software Programs That Open The Compiled Help Index File:

FAR HTML by Helpware

Windows

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Sources of CHW Problems

Common CHW Opening Problems

FAR HTML Isn't There

When trying to open your CHW file, you get the error "Can't Open CHW File Type". If this is the case, it's usually due to the fact that you do not have FAR HTML for %%os%% installed on your computer. Your operating system cannot associate your CHW with FAR HTML, so double-clicking the file won't work.

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

Wrong Version of FAR HTML is Installed

Occasionally, you might have an outdated version of FAR HTML installed that's incompatible with your Compiled Help Index File type. Visit the Helpware website to download (or purchase) the latest version of FAR HTML. Most of the time your Compiled Help Index File file was created by a newer FAR HTML than what you have installed.

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

Ultimately, most of the difficulties opening CHW files are due to having the wrong version of FAR HTML installed.

Additional CHW Opening Issues

In the majority of cases, installing the right version of FAR HTML will resolve your issue. Other CHW opening errors can be created by other system problems inside of %%os%%. Other contributing causes:

• CHW file references in the Windows Registry are broken
• The CHW file description within the Windows Registry was removed
• Defective install of a CHW program, such as FAR HTML
• Something has caused file corruption of your CHW
• Past or present virus infection has affected your CHW
• Drivers associated with CHW software need to be updated
• Your computer does not have the adequate system resources to open the Compiled Help Index File format