**  Remote access to your computer requires your computer to run a  RAS program

which I use for administration purposes on all my  Valued Clients  systems.

online scanners

http://www.microsoft.com/security/scanner/en-us/default.aspx

http://www.bitdefender.com/scanner/online/free.html

http://housecall.trendmicro.com/

http://www.eset.com/us/online-scanner/

http://www.kaspersky.com/virusscanner

http://security.symantec.com/sscv6/WelcomePage.asp

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ipconfig /flushdns
net stop dnscache
net start dnscache

netsh int ip reset [ log_file_name ]

Example:

netsh int ip reset resetlog.txt

For Windows Vista, things work a little different due to introduction of UAC (Guide: Disable UAC). Use this guide to perform a reinstalling of TCP/IP protocol in Vista:

1. Click on Start button.
2. Type Cmd in the Start Search text box.
3. Press Ctrl-Shift-Enter keyboard shortcut to run Command Prompt as Administrator. Allow elevation request.
4. Type netsh int ip reset in the Command Prompt shell, and then press the Enter key.
5. Restart the computer.

The command will remove all user configured settings on TCP/IP stack and return it to original default state by rewriting pertinent registry keys that are used by the Internet Protocol (TCP/IP) stack to achieve the same result as the removal and the reinstallation of the protocol. The registry keys affected are:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\

and

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\DHCP\Parameters\

or

Windows Vista gives up if it cannot resolve the DNS on the first attempt.

The Solution

Download this file, extract, and double click it to import it into the Windows Registry.

Or, if you don’t trust random files from the Internets (which you shouldn’t!), follow the steps below to create it yourself:

In a newly created .reg file, type in the following:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows NT\DNSClient]
"AppendToMultiLabelName"=dword:00000001

Save and double click the file to import it into the registry.

If you choose to open RegEdit manually and insert it yourself, beware that the key may not be present beyond the “Windows NT”. Add a new key, named “DNSClient”, then add a new DWORD (either 32 or 64, if you have the option) named “AppendToMultiLabelName”, then double-click to modify it and enter a value of “1″.