How to sign your application with Code Signing for Microsoft Infopath ?
Please follow our Microsoft Infopath instructions to sign your form templates using your Code Signing for Microsoft Authenticode certificate:
1. Double-click on your .pfx certificate file.
2. Import it.
3. Run Microsoft Infopath and open your form template file.
3. Go to Tools > Form options...
4. Click Security and Trust.
5. Check the Sign this form template box.
6. Click Select Certificate..., choose your Code Signing certificate you imported in steps 1 and 2 and click OK.
7. Click OK.