If you are using local connection the qvw file has to be accessible as in windows path. So you need to map the drive of your QV Server 192.168.100.4 as a network drive (say t: ) and use T: \Qlikview...\filename.qvw.
If you are using server you can use the qvp:// syntax.
Re: Nprinting connection to Qlikview file of another server
The connection string seems wrong. It seems a mix of a mounted folder E and the QVP url. If you use QVP it should be something like ServerName/Document.qvw.
If you are opening a QlikView document from a shared network folder you must use the UNC path like \\ServerName\Folder\Document.qvw. Mapped folders like E: are not supported.
In both cases you must be able to open the document from the QlikView Desktop installed in the Qlik NPrinting Engine computer.
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