I have a fresh install NS 7.1 server and old 7.0 agent running Windows 7 64bit.
After I push the agent to upgrade the 7.0 agents, around 10% agents would not install the software update agent,
I used RAAD to check the agent, even the software update agent is not in the list of SWD tag.
also found this three line always show in NS log viewer:
"3/27/2012 10:15:12 AM","download() - Unexpected exception downloading package {832C527C-B9C9-46FB-B1F1-2F35434FF90D}","DownloadManager","AeXNSAgent.exe","4464"
"3/27/2012 10:15:12 AM","Requesting download for package {832C527C-B9C9-46FB-B1F1-2F35434FF90D}","DownloadManager","AeXNSAgent.exe","4464"
"3/27/2012 10:15:12 AM","Caught Unexpected exception : refreshPackageStatus()","DownloadManager","AeXNSAgent.exe","4464"