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  1. #1
    2 Star Lounger
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    DUN capturing CPU resources

    Win98SE, 98Mb RAM, Lucent Winmodem

    My mum always told me that "what you don't know can't hurt you". I found this out after reading a magazine article about the Windows System Monitor. Just for fun I was running this when I was on the 'Net and found that when I hung up, the CPU usage shot up to 70%.

    By going through an elimination process of rebooting and then not loading my Internet applications I have determined that it is my DUN connection. From a fresh boot, with the system monitor running, I can run the DUN which dials up (with the appropriate CPU activity). Once the connection is made the CPU activity drops to idle. If I then hang up the CPU activity shoots up to 70% and sits there. If I dial up again the CPU activity drops to idle again once the connection is made.

    If I look at the processes running in the 70% state using <Ctrl><Alt><Del> the only extra process I can see is RNAAPP. If I kill that from <Ctrl><Alt><Del> there is little, if any, drop in the CPU activity.

    I'm not sure whether this is a Windows DUN problem or not. (I've Googled and tried to get the latest driver for my modem). Would anybody be able to help here? In WinNt the Task Manager allows you to see what processes are running. Is there something similar for Win98? TIA
    Keith Rodgers
    <img src=/S/flags/NewZealand.gif border=0 alt=NewZealand width=30 height=18>

  2. #2
    Plutonium Lounger Leif's Avatar
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    Re: DUN capturing CPU resources

    A quick Google on "RNAAPP" brings up many articles, including:
    The Taming of Rnaapp.exe

  3. #3
    Plutonium Lounger
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    Re: DUN capturing CPU resources


  4. #4
    2 Star Lounger
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    Re: DUN capturing CPU resources

    Well, I've been having a bit of a snoop around and found a MS knowledgebase article Q227131 that advises that System Monitor can sometimes tell porkies. <span style="background-color: #FFFF00; color: #000000; font-weight: bold">"Trustworthy computing"</span hi>

    So I downloaded a shareware System Monitor EF Software and sure enough the CPU resources maxing out scare was just a false alarm. I can live with RNAAPP not closing down as it should so long as it isn't eating up my resources so I guess I'll live with that.

    Thanks for your help guys.
    Keith Rodgers
    <img src=/S/flags/NewZealand.gif border=0 alt=NewZealand width=30 height=18>

  5. #5
    Uranium Lounger
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    Re: DUN capturing CPU resources

    Hi Kiwi:
    Just FYI, RNAAPP (Remote Network Access Application) is designed to stay active for about 15 minutes after you break a connection...in case you change your mind. I guess it's sort of like those "Are you sure you want to...?" <img src=/S/evilgrin.gif border=0 alt=evilgrin width=15 height=15>

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