How to use Sagent Web Services when the machine doesn't have connection to the Internet

Although modifying the sagent.wsdl file is not advisable (not supported) for this particular scenario there is a workaround which consists on saving a copy of the encoding.xml file to a local drive and then change the schemaLocation to point to the local file as per following example:

Before:
 <import namespace="http://schemas.xmlsoap.org/soap/encoding/" schemaLocation="http://schemas.xmlsoap.org/soap/encoding/"/>

After:
<import namespace="http://schemas.xmlsoap.org/soap/encoding/" schemaLocation="c:\temp\encoding.xml"/>