What is the H1C file format?
A file with the .H1C extension is a file known as Windows Vista File Related To Assistance Platform (AP) Help. It belongs to the System Files category. This format is associated with Microsoft Corporation.
The reliable way to open a .H1C file is with software that recognises this exact format, rather than guessing from the file name. If you are not sure what created a file, our file identifier can read its first bytes and name the real format, even when the file has been renamed.
We are still gathering the list of programs that open .H1C files. A fully verified, hand-written description of this format is being prepared; until then, the details on this page are drawn directly from our database.
Format details
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