Because IE7 prohibits ActiveX signed by code signing certificate without international certification by default, just look at the security settings of IE7.

It is impossible for the user to change the settings, and the digital signature used for the test is invalid, so we have to use the authenticated digital certificate, but it basically costs money.

I looked for it for a while and tested it, but the one-year free certificate provided by China Digital Authentication Network is the best.

Select a certificate application form and set the corresponding items, as shown in the figure below.

Select "Install Online" in the interface that appears after submission, and then this "personal" free certificate will be installed on your machine.

You can use signcode.exe directly when signing the control later, and you don't need to make makecert yourself.

When selecting a certificate, select this "individual" from the store.

It is best to add all the interfaces that appear in the next step.

Then just browse the previous page:)

note:

1: Note that code signing certificate is used.

2. Free digital certificate is valid for one year.

3. To change the name and additional information of the digital certificate, you need to purchase other charging versions.