File Extension HAC

Written by:   |   Last Updated: November 15, 2018

Microsoft Silver

HAC File Summary

File Extension HAC has only one distinct file type (Helma Actions Script format) and is mostly associated with a single related software program from Open Source (Helma). Generally, these files are considered Developer Files.

The HAC File Extension can be viewed on the Web operating system. They are supported on both desktop and mobile devices. These files have a Popularity Rating of "Low", meaning they are not very commonly observed on your average hard disk.

If you would like to learn more about HAC files and the software that opens them, please see the additional detailed information below. Also, you can learn how to do some basic HAC file troubleshooting if you are having trouble opening these files.

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Kinds of HAC Files


Dominant HAC File Type

.HAC
File Ext:.hac
Classification:Helma Actions Script

Script file written by Helma, a server-side Javascript environment and web application framework. HAC file contains Javascript code that Helma will evaluate when handling a request.

Developer: Open Source
Kind:Developer Files
Key: HKEY_CLASSES_ROOT\.hac

Software Programs That Open The Helma Actions Script:


Helma by Open Source

Web

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HAC Demand


Top Devices

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


Troubleshooting Problems Opening HAC Files


Frequent HAC Opening Issues

Helma Isn't There

When you double-click your HAC file, you may see a dialog box from your operating system stating that it "Cannot Open This File Type". Customarily, this means that Helma is not installed on %%os%%. Your operating system cannot associate your HAC with Helma, so double-clicking the file won't work.


Tip: When you have another program installed that you know will open your HAC, you can select it from the other programs listed (see "Show Apps").


Obsolete Version of Helma

In some cases, you might have a newer (or older) version of a Helma Actions Script file that is unsupported by your installed application version. If you've got the wrong version of Helma installed, you'll need to install the correct version. Most of the time your Helma Actions Script file was created by a newer Helma than what you have installed.


Tip: Investigate your HAC file by right-clicking and selecting "Properties" to find clues on what version you need.


Summary: Not having the right Helma version on your computer can cause problems opening HAC files.


Associated Difficulties Loading HAC Files

You can still experience errors opening HAC files even with the latest version of Helma installed on your PC. There can be external issues inside of %%os%% that are causing these errors when opening HACs. Additional factors include:

  • Corrupt Windows Registry file path references for HAC
  • The HAC file description within the Windows Registry was removed
  • Incomplete or bad installation of a software application associated with the HAC format
  • Something has caused file corruption of your HAC
  • Past or present virus infection has affected your HAC
  • Hardware related to HACs has device driver corruption
  • Windows has inadequate resources to open your Helma Actions Script file

Quiz: Which file extension is a type of raster image?








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