Recently I found brand new NZB downloader that doesn't need any installation. All you have to do is go to nzblord.com and upload NZB-file or contents of NZB. After that you can download files with web browser. There is a free trial. I stopped using Usenet servers after I found this site, because I don't have to pay for NNTP access and Usenet Clients. I hope I helped you a lot.
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