Windows 7 Discussion on Windows 7 and operating it on the Dell Mini series.

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MoInSTL MoInSTL is offline
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Post Microsoft Incorporates Virtual Wi-Fi into Windows 7 - 05-20-2009, 01:37 PM

DailyTech - Microsoft Incorporates Virtual Wi-Fi into Windows 7

Back in the days before multiple core CPUs were the norm, Intel used virtualization technology to make your single CPU look like multiple CPUs to the operating system via Hyper -Threading. Microsoft long ago worked on similar technology that would allow a single wireless network adapter to be seen as multiple adapters by the operating system.

The research had seemingly gone by the wayside as Microsoft moved onto other projects. The publication istartedsomething reports that the Virtual Wi-Fi (VWIFI) feature has been included in Windows 7. In fact, the feature is in the release candidates, but no drivers are reportedly available to take advantage of the feature so it lies dormant waiting to come out and play.

Some users may wonder why more than one wireless card would be needed inside your computer. There are a few circumstances where multiple wireless adapters would be needed. For instance, users could connect to one wireless network and use the virtual adapter to turn their machine into a hot spot that other computers could connect to and share the internet access.

Another good usage scenario for the technology would be connecting to a wireless network while also connecting to a wireless adhoc network at the same time. Istartedsomething reports that supporting Virtual Wi-Fi is going to be a requirement for WLAN drivers sporting the Windows 7 certification logo, so drivers will be coming to add support for the feature.

The feature is described as, "On Windows 7 and later, the operating system installs a virtual device if a Hosted Network capable wireless adapter is present on the machine. This virtual device normally shows up in the “Network Connections Folder” as ‘Wireless Network Connection 2’ with a Device Name of ‘Microsoft Virtual WiFi Miniport adapter’ if the computer has a single wireless network adapter. This virtual device is used exclusively for performing software access point (SoftAP) connections [...]. The lifetime of this virtual device is tied to the physical wireless adapter. If the physical wireless adapter is disabled, this virtual device will be removed as well."

The caveat to the technology is that only one virtual adapter can be created. Technical information on the feature for hardware vendors and developers will be offered at the WinHEC session called "Wireless LAN Enhancements in Windows 7."

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Jazz1 Jazz1 is offline
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Default 05-25-2009, 09:31 PM

I saw the "Wireless Connection 2" pop up when I connected a Wifi USB to my Mini 9. I could connect to my home Wifi connection on both the internal Wifi card and the USB Wifi device. Is this some kind of "multi-homing" thing like Macs. If so is this worth anything speed wise?
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holmes4 holmes4 is offline
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Default 05-25-2009, 09:42 PM

I don't know what multi-homing is, but Windows has been able to have more than one network connection active since at least XP. You might need software that can take advantage of multiple links to see any benefit.

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Clintre Clintre is offline
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Default 05-25-2009, 11:53 PM

There are a lot of security issues that would have to be taken in to consideration. For instance bridging a non-secure public network with a secure business network. If proper security is not setup you just gave a hacker and easy way around the corporate firewall.

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