HO Types

Leading HO Type

.HO

File ID:	.ho
Class:	Knowledge Explorer Knowledge Representation Hierarchy Outline

An HO file is associated with Knowledge Explorer and contains hierarchy outline.

Developer:	Open Source
Class:	Data Files
Key:	HKEY_CLASSES_ROOT\.ho

Software Programs That Open The Knowledge Explorer Knowledge Representation Hierarchy Outline:

my Knowledge Explorer by Open Source

Windows

Mac

Linux

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Understanding HO Issues

Frequent HO Opening Issues

Missing my Knowledge Explorer

You attempt to load your HO file and get an error such as "%%os%% Can't Open The HO File Extension". When this happens, it is commonly due to my Knowledge Explorer missing in %%os%%. This will prevent you from double-clicking to open the HO file because the OS doesn’t know how to handle it.

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

my Knowledge Explorer is Out-of-Date

Your Knowledge Explorer Knowledge Representation Hierarchy Outline file is incompatible with my Knowledge Explorer because you might have the wrong version installed. Installing the latest version of my Knowledge Explorer from Open Source is recommended. The primary cause of this problem is that your Knowledge Explorer Knowledge Representation Hierarchy Outline file was created by a different (newer) version of my Knowledge Explorer than what's installed.

Tip: You can sometimes get hints about the right program version by right-clicking on the HO file, selecting "Properties", and looking at the version information.

Conclusion: The majority of HO file opening issues are due to not having the correct my Knowledge Explorer version installed.

Other Causes of HO File Opening Problems

Although you might already have my Knowledge Explorer or another HO-associated software installed on your computer, you can still encounter problems opening Knowledge Explorer Knowledge Representation Hierarchy Outline files. If you're still experiencing problems opening HO files, there could be other computer problems. These issues include:

• Invalid HO file references in the Windows Registry (the "phonebook" of the Windows Operating System)
• Accidental deletion of the description of the HO file in the Windows registry
• my Knowledge Explorer or another HO application experienced a flawed installation
• The HO itself is corrupted
• Malware-tainted HO file can't be opened
• HO-related hardware has device drivers that obsolete
• Windows cannot load your Knowledge Explorer Knowledge Representation Hierarchy Outline file due to insufficient resources (eg. RAM)