If you already have a certificate you want to use, you can follow these steps to make it available to Ironstream agent connections.
Open the Windows 'Manage Computer Certificates' utility - type manage computer certificates in the Windows search box and select the option it provides. The Microsoft Management Console should open with the plug-in as shown here:
Right click the Enterprise Trust item.
Click through All Tasks > Import and then click Next.
On the next page, browse and select your certificate file which can be PKCS#12, PKCS#7 or any format acceptable to Windows. You may need to set the correct suffix in the browse dialog to allow it to be found.
Click Next twice.
Click Finish to complete the import.