From Xojo Documentation

Property (As FolderItem )
aSSLSocket.CertificateFile = newFolderItemValue
FolderItemValue = aSSLSocket.CertificateFile

New in 2006r4

Supported for all project types and targets.

The file that contains the SSL certificate.

Sample Code

This example opens the certificate file and assigns it to the property.

Var f As FolderItem
f = FolderItem.ShowOpenFileDialog("text/plain")
If f <> Nil Then
Socket1.CertificateFile = f
End If