Thomas

Drop no latancy as a requirement. If you mean no lag, well still probley not going to happen. Darn close to real time yes, no lag no. What codec do you want to use? How many cameras?

K, right click on the file, select properites and uncheck all of the boxes.

Because it's a locked system file. Boot into DOS then use the attrib command. It's syntax is ATTRIB [+R | -R] [+A | -A] [+S | -S] [+H |-H][[drive:][path]filename] You want to use all of the - ones the first time, and when you finsh editing it in the edit program use attrib again and reset it's status.

Remove then plug back in your hardware.

Add: PATH C:\;C:\WINDOWS;C:\WINDOWS\SYSTEM c:\windows\win Make sure both of those lines are in there. If path exsists then make sure the parts of the line I gave are presant.

No, SFC wouldn't have found it. I ment if I could see the actul line you typed in. If you could post the full line of your autoexex.bat and msdos.sys it would help.

Have you run system file checker yet? (sfc.exe) Are the paths set correctly in your MSDos.sys file? What line did you add to the autoexec.bat.

Did you hide all of the icons, or just that one?

On the spending of obsene amounts of money on LCDs...I got a chance to play with one of the 30" Apple cinema displays. Very, very nice. Very, Very expensive. The details were crisp and sharp, brightness was excellent. Of course it's over $3200 (USD) but I can see spending the money for really high end security apps.

Given the poor latenacy and speed of that connection, dial up or ISDN would be better choices.

Some general network terms: MAC Address: Media Access Control Address. This is the physical address of the card. It's a relatively unique identifer that is linked to a spefic card. So on some networks you can have any IP you will only have generally one MAC address. The place you're most likely to use or encounter this is in a wireless network. One way to secure a wireless network is to use MAC address filtering. Saying that only certain MAC addresses can access the network. This won't stop more then a casual snoop however because a MAC address can be spoofed with ease. DHCP: Dynamic Host Configuration Protocol. This protocol allows for a network to assign IP addresses on a first come first serve basis. Very useful in small networks where security is less of an issue then ease of use. Bandwith: Bandwith is one measurement of how much data a network can carry. It's usually measured in bits per second. A 100 Mbps network can move 100 Mbps at a time. This isn't the same as saying it can move 100 MB (bytes is capitalised, bits are not) at a time. The general ratio is eight bits to the byte. Network Bridge: In a nut shell it lets you join two parts of a network. Bridging a connection joins two networks together. DMZ: DeMiliterized Zone. A machine that is on a network but beyond the firewall. Useful for some servers but I would almost always recomend proper port forwarding rather then placing an exposed machine of any kind onto the net. ADSL: Asymmetric Digital Subscriber Line. A DSL line in which there is an uneven distrubtion of up and down bandwith. This is the most comman form of DSL which allows for fast downloads and slower uploads. There are other DSL varients but the only other one you're likely to see is SDSL which is the symmetric version of DSL. DoS: Denial of service (not the OS). There are a couple of differant forms of it but basicly it's an attempt to cause more data to be sent to a server then it can handle. Alot of the viruses and worms attempt to set up Zombie nets of infected PC's to do this. It's not always malicious in nature, if a large site links to a smaller site it's possible for this to happen. There is a geek news site called "Slashdot" www.slashdot.org which is noted for the "slashdot effect" in which it's readers take down a site in an attempt to read an article that slashdot has linked to. Hubs and Switches: This confuses some people. There is a differance between them however. Hubs are "dumb" devices. They recive a packet and broadcast them to everyone. Switches are "Smart" devices that can filter packets based on MAC address. Routers filter packets based on IP address. This allows for differant levels of control. VPN: Virtual Private Network. VPN's use the internet but set up an encrypted network that is compressed. It adds a layer on top of the network to allow for a company to have it's intranet secure but available to it's employees from home. Inter/intra nets: Internet is the big one, intra nets are internal networks for an orgranization. WAN/LAN Wide area network. Local Area Network. WANs connect two or more physical locations, LANs connect PC's within a location.

It's going to depend on the software, however, with no-ip.com you can log into the account on thier website and look up your IP address.

The only real problem with the no-ip type of services is there can be a delay between the changing of an IP address, the software reporting it, and the service updating thier redirect. I haven't played with the router support for those services and it's possible they can elminate the reporting lag. But there can be a window of lack of service.

Yep.

If the router handles the no-ip.com then that's all you need.

Rory, just get a d-link router, they have support for no-ip.com built into the router.

Bah, you could always have the knucklehead we have in office.

Odd, here they are extra, but not so much where I live. Normally you can't use no-ip.com with a stand alone. However, some routers like D-Link have support for it built into the router. Also, any of the other PC's on the network can be running it, they just need to share the same external IP address.

For a single static IP address I would go with something in the home grade routers. Linksys or D-Link both make fine routers for a decent price. I wouldn't pay for a static IP address, there are a few services that can help with that for free.

Um a hub is something you should never connect to the internet. Basicly all a hub does is turn normal CAT5 into crossover cable. It's useful if you have something else to do network traffic control, but it will lack a firewall. If you have multiple static IPs then you're better off moving up to the next grade of router like the low end Cisco systems.

The half/full duplex settings are in windows networking settings. Um, three of them doing it is more of a proof then a disproof. I'd stay with the same networking card.

I've seen problems like what you're discribing and they aren't fun to fix. 1. Network card, is it currently set to half or full duplex? 2. Are the settings like MTU set optimally for your ISP? (Best place to ask that is dslreports.com, they cover most of the contries that have english as a primary language.) 3. Anything else using those ports? IM clients, ect? 4. Any infections?

Except it's not that simple. 16 cameras at high res, full frame rate pushes the limits of the PCI bus. You have to design accordingly. But a big chunk is marketing. You have to have multiple price options.

How major a factor does CCD size make in the field of view. I've been studing the basic equations and it looks like this. 1/3" CCD, Object 200 meters away, 50 meters of width of view= F= (4.8 x 20000)/5000 (All in mm) F= 19.2 2/3" CCD, same F= (16.93 x 20000)/5000 F= 67.72 So I need a much bigger lens to get the same width of view, or am I just not doing my math correctly?

Errr...found my math error. Corrected it and my numbers. Just remeber kids, when you double one number but end up with a result four times as big, then maybe you made a goof.