I get a Memory Access Violation when I run the Photoshop plugin.

You are probably running an older version of our plugins. We recommend that you use Softener 1.30 or newer, Plaid Lite 1.20 or newer, or Autochromatic 2.07 or newer. If you have an older version, you can download the latest versions of our Photoshop Plugins here.

If that still doesn't work, consider changing your Windows' Data Execution Protection (DEP) settings. If you're running an old version of the plugins, adding your graphics program (eg Photoshop, PSP, Photoimpact) to your computer's DEP exclusion list should fix the problem.

Microsoft has some instructions for how to turn off DEP here - click on the instructions for "To turn off DEP for an individual program". These instructions mostly apply to Windows Vista:

Microsoft: Change Data Execution Prevention Settings

If you have Windows XP and the above instructions didn't help, try these instructions for how to turn off DEP. They are trickier to follow though. Scroll down to the section that says "Enabling the DEP Exception List":


The DEP settings are in your Control Panel's System menu, in the Advanced tab. Click on the Performance Settings on that tab, and a new window should appear with Data Execution Protection options at the top. You'll want to add your graphics program (eg Photoshop) to that list, and then restart the computer.

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