Hi Richard, If you have one piece of malware you probably have more including some that commercial software may not be able to find, called a rootkit. You should disconnect the PC from the Internet until it is checked out. It could easily be sending out spam or your private information without you knowing it as well as sending spam to members of this list as well!
It takes a lot of caution and work to keep a Windows PC clean these days if you do not have an IT department to do it for you. I figure an hour's work per week and only connected to the Internet through a hardware NAT firewall, enough to cause me to dump Windows and migrate over to Unix (Mac OS X). Doug Stone, Richard wrote: > Group, > My PC running Windows XP has got some infected spyware and keeps popping > Up to download and of course pay for it. I can't remove it from the > system. > Within ADD/Remove programs it does now show up to remove....any ideas? > The PC works fine otherwise, it's just a nuisance popup that wont die... > Thnaks in advance. > Richard, > > > -----Original Message----- > From: [email protected] [mailto:[email protected]] On Behalf Of Marko > Radojicic > Sent: Tuesday, August 21, 2007 2:03 PM > To: Ken Javor; [email protected] > Subject: RE: 802.11 & similar wireless links, interference between > > Ken, > > If you want to avoid interference in 802.11, use 11a. There are many > more channels available than 11b/g (exact details are dependant on the > country you are operating in). The new DFS requirements have effectively > eliminated a lot of these channels but 11a may still be the best option > for your application. > > If you are forced to use the 2.4GHz 11b/g band, there are only three > (mostly) non-interfering channels: 1, 6 and 11. > > Typically channel 6 will have the highest TX powers and thus the best > performance. Channels 1 and 11 typically have less TX power capability > in order to meet the regulatory band-edge requirements. > > There is some limited amount of interference between channels 1 & 6 and > 6 & 11 but not huge. Channels 1 & 11 have no interference. There is much > less channel-channel interference even between adjacent channels in 11a. > > The ultimate non-interference strategy, of course, is to use both 11b/g > and 11a. > > Most WLAN enterprise solutions have planning software that help users > select the AP density & location, channel selection, TX power setting, > etc. You may want to consider this option if your application is > complex. > > ...Marko > > -----Original Message----- > From: Ken Javor [mailto:[email protected]] > Sent: Wednesday, August 15, 2007 5:00 AM > To: [email protected] > Subject: Re: 802.11 & similar wireless links, interference between > > Slightly different question, based on answer below. If you had multiple > 802.11 links in the same area, would it be possible to assign fixed > "channels" to the most important ones, and exclude less important links > from > intruding on those? Also, could other links such as Bluetooth be > controlled > so as not to occupy the same bandwidth? -- ___ _ Doug Smith \ / ) P.O. Box 1457 ========= Los Gatos, CA 95031-1457 _ / \ / \ _ TEL/FAX: 408-356-4186/358-3799 / /\ \ ] / /\ \ Mobile: 408-858-4528 | q-----( ) | o | Email: [email protected] \ _ / ] \ _ / Website: http://www.dsmith.org - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas [email protected] Mike Cantwell [email protected] For policy questions, send mail to: Jim Bacher: [email protected] David Heald: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________
