2007 February

Feb
27

Cleverly Repair Large Corrupted Files with BitTorrent Client Checksum Hash Scans

I admit, I have a very fast broadband connection at home. My link speed is more than 6 Mbps. You’d think I can’t complain. But there are some files that seem to download for an eternity. Take, for instance, the Windows Vista Beta. On my connection, that 4 GB bloatware *.ISO mammoth took about two hours to download. Even, when I used DownThemAll!, it took about an hour and a half! That is way too much time to spend for downloading.

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Feb
15

Disable Feature Cripplers Like WinLock by Changing Windows Registry Policies

When I was a high school senior. I was in charge of the network and the technology lab. Part of my job included maintaining and fixing the computers. As a systems administrator, I required full access to the network and the machines. Unfortunately, some of the computers were locked. Back when I was a freshman that the previous systems administrator installed a feature crippler called Winlock on all of the machines to prevent students from changing settings like the desktop background and installing programs like computer games.

I hate it when people install programs the cripple functions in the operating system. But, I suppose it was necessary back then since the computers in the lab had Windows 98 installed. Unfortunately, Windows operating systems like 98 are not based on the NT Kernel. Therefore, WinLock was necessary in order to render a “guest user” environment for the students.

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Feb
15

Faster Bootup and Windows Startup by Disabling DHCP Requests

It happens many times. You have an extremely fast computer with a high-end CPU and a gigabyte of RAM. Why then does startup seem to take a billion years? Does your computer hang each time it boots up or (in XP) after you log in?

DHCP Server Requests
Some home desktops and laptops tend to do this. Surprisingly, in this age of broadband, there are computers that still do not rely on the 10/100 Ethernet Network Adapter for Internet access. An operating system does not like to leave its network adaptor without an IP address. So, it does what any self-respecting OS does and sends a broadcast request to any free DCHP server out there to issue it one. Stupidly, the operating system does this regardless of whether it detects any cable connection or not. On some operating systems, these DHCP server requests carry a timeout period (usually 30 seconds) in which the computer is paralyzed waiting for an IP issuance. If the is no replay (like in the event the network cable is not even connected) the operating system will have a NULL IP address.

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