This error is caused by the following line.
destX509 = qie.base64Encode(new java.lang.String(com.qvera.dnsjava.LookupCert.getCertsFromDNS(messageCache.getValue('To')).get(0).getEncoded(), 'ISO-8859-1'));
The underlined code is looking for an additional jar file that is available at the following link:
www.qvera.com/files/qie/iis/MA_HiWay_Jars.zip
Steps to install:
1. download the zip file from the link above
2. Extract and copy the "MA HiWay Jars" folder to "C:\programdata\qie\lib" folder
3. Log into QIE and go to "System Admisitration">"System Configuration">"Manage External LIbraries". Check the MA HiWayJars in the dialog that opens.
4. Click Update and then yes to restart QIE when prompted.
