Does ERU(EEM Reporting Utility) tool works with MSSQL Server named instance ?
Yes, ERU tool works with MSSQL named instance.
You need to mention the port number of the named instance in the below files(no need to specify instance name):
1.file "conf\service.xml" under Reporting Service installation folder.
2.file "conf\client.xml" under Reporting Client installation folder.
<param name="url" value="jdbc:ca:sqlserver://hostname:port;DatabaseName=ERUDB" />