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Internet Explorer Says, "The signature of this program is corrupt or invalid" when I download your software

This is not an issue with our software. It's a problem that is well documented on Microsoft forums which discuss several probable causes ranging from Internet Security software to known issues with specific Internet Explorer security updates. Links to these forums are below and our recommended first step resolutions are:

  • Try the download again using an alternative browser such as Chrome or Firefox.
  • Update to Internet Explorer 11 which Microsoft reports will resolve this issue.





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For in-depth questions you can file a support ticket and get answers directly from us.

To file a ticket, send email to 'support@cnccookbook.com' or use the 'Submit Tickets' link below. You'll need to Login to submit tickets or review their status.


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Get Help Right Inside the Software

Our G-Wizard software gives you access to all sorts of help right inside the software:

G-Wizard Help

Dig Deeper

Get the most out of your G-Wizard Software with our articles and online courses:

G-Wizard Software Blog Posts: Every new feature gets a write up here first.

Feeds and Speeds Course: Learn the trade secrets of Feeds and Speeds and how to exploit them with G-Wizard Calculator.

G-Code Programming Course: Filled with examples for G-Wizard Editor.

Blog Posts on Feeds and Speeds: Even more trade secrets.

Blog Posts on G-Code Programming: Even more g-code gems.

Tips: Our software will give you a popup tip every so often. Check them out and let them run. You'll pick up all kinds of helpful ideas.