Error Message
Encapsulated PostScript image Message
Error starting Ghostscript. Make sure that Ghostscript is installed and if necessary – use the environment variable GS_PROG to tell GIMP about its location. (Failed to execute child process (No such file or directory))
Encapsulated PostScript image message
Could not interpret ‘image_example.eps’
GIMP Message
Opening ‘image_example.eps’ failed: Enscapsulated PostScript image plug-In could not open image
Screenshot – GIMP v2.4.6 on Windows Vista SP1

Solution
Instructions for Windows Vista
Requirements: Ghostscript installed
- If GIMP is running, close the application.
- Press Windows-Key+Pause/Break keys (Control Panel -> System).
- Left mouse click on “Advanced system settings” (system properties).
- Left mouse click on “Environment Variables..”.
- Left mouse click on “New…”.
- Enter the following information (without double quotes) for Variable Name: “GS_PROG” and Variable value: “C:\Program Files\Utilities\gs\gs8.61\bin\gswin32.exe”. Replace the path and file name with your location and current version of Ghostscript installed.
- Left mouse click on “Ok”.
- Left mouse click on “Ok”.
- Left mouse click on “Ok”.
- Load GIMP and open EPS files.
Source: GIMP Plugin Registry: Problem opening .eps files
Source: Download Ghostscript