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.REG File Extension 2 File Associations

Run a free scan for .REG file extension errors.

File Type 1 Registry File  (Most common)
Category System Files
Common? No
File Description Updates the Windows Registry when run; custom REG files can be created to alter different aspects of Windows; to create your own registry update file, follow these steps:
  1. Launch Regedit (From the start menu, select Run, type "Regedit")
  2. Select the section of the registry you are interested in modifying
  3. From the File menu, select Export
  4. Choose "Selected Branch" from the Export Range option at the bottom of the window.
  5. Save the file as a ".reg" file.
NOTE: Manually updating the Windows registry is an advanced process and should only be performed if you know exactly what you are doing; incorrect registry updates may render Windows inoperable.
Program(s) that open reg files
Windows Windows Edit with Regedit
Runs itself when the corresponding application is run
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Updated 2/14/07

File Type 2 Registration Information
Category Settings Files
Common? Yes
File Description Stores registration key, serial number, and other user registration information for a certain program; created when registration is completed; referenced by the progam when opened to authenticate the user.
Program(s) that open reg files
Mac OS Mac OS Not meant to be opened or altered
Windows Windows Not meant to be opened or altered
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Updated 2/23/07
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