As written above, Windows XP uses a DNS cache to store recently visited Internet addresses. This cache is referred to before a request is sent out over the Internet when the user requests a web page address. If the IP address corresponding to the web address is in the cache, that address gets used, saving time. If it is not, your computer needs to find out the correct IP address by asking a DNS server over the Internet.

Items are kept in the cache for a finite amount of time and are constantly bumped to make room for more recent addresses. By increasing the size of the DNS cache, you can increase the speed of your web browsing, especially if you regularly check the same web pages. (more…)

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Windows Vista comes with a collection of built in network diagnostics tools from the Network Connectivity Status Indicator (NCSI) to the Network and Sharing Center. Essentially Microsoft built Vista to identify problems all on its own, come up with a resolve and then fix the problem. At the basis of the self diagnosis mechanism is the Network Diagnostics Framework, a feature integrated by default into the operating system designed to identify and isolate context sensitive problems and repair them automatically or provide guidance for the end user in troubleshooting common networking issues. And yet, in some scenarios all the mitigations set up by the Redmond company in Vista will fail miserably.

Microsoft confirmed that Windows Vista-based machines can experience a variety of issues when connecting to a wireless network environment. (more…)

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