.HHK File Extension

HTML Help Index

Developer Microsoft
Popularity
3.8  |  5 Votes
 

What is an HHK file?

Help index file created by Microsoft HTML Help, a program used for creating Windows help documentation; saves an index of keywords that each open a help page when clicked; enables quicker lookups for common terms.

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Programs that open or reference HHK files

Windows
Microsoft HTML Help Workshop  —  Discontinued
Free

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