Disable or Enable USB Storage device

1. Run Registry Editor (regedit).
2. Navigate to the following registry key:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\UsbStor

3. In the right pane, double click on the Start value name.

4. Change the value data to 4 to disable the removable USB mass storage device drive access.

5. To revert and re-enable the drive access for removable USB mass storage device driver, change back the value data for Start to its original default of 3.

File search in XP

A word or phrase in the file search criterion may not work:

When you search for files that contain text by using the A word or phrase in the file search criterion, the search results may not contain files that contain the text that you specified.

Reason:A filter component is not registered for the file type that contains the text that you specified, or the filter component ignored the text that you specified.

To resolve this problem add a Persistent Handler key in registry

[HKEY_CLASSES_ROOT\.doc\PersistentHandler]
@="{5e941d80-bf96-11cd-b579-08002b30bfeb}"

Sharing problem in XP

Error Message : no more conections can be made to the remote computer
Cause : If the computer reaches the maximum number of inbound connections that the computer can host.

For Windows XP Professional, the maximum number of other computers that are permitted to simultaneously connect over the network is ten. This limit includes all transports and resource sharing protocols combined. For Windows XP Home Edition, the maximum number of other computers that are permitted to simultaneously connect over the network is five. This limit is the number of simultaneous sessions from other computers the system is permitted to host. This limit does not apply to the use of administrative tools that attach from a remote computer.

More than one IP address to a single NIC

To configure extra IP addresses under NT 4.0 perform the following:
Right click on Network Neighborhood and select Properties (if you are unable to do this start the Network Control Panel applet via control panel)
Select the Protocols tab
Select 'TCP/IP Protocol' and click the Properties button
Select the 'IP Address' tab and you will see your normal IP address. Click the Advanced button at the bottom of the dialog
Select the Adapted and click Add under the IP addresses section
Enter the new IP address and subnet mask. Click Add
Click here to view image
Click OK to the advanced dialog
Click Apply then OK to the TCP/IP dialog
Close all other dialogs
Reboot the computer
Under Windows 2000 the procedure is the same except to get the TCP/IP protocol properties you need to:
Right click on "My Network Places" and select Properties
Right click on "Local Area Connection" and select Properties
Select "Internet Protocol (TCP/IP) and select Properties The procedure is then as above except the reboot is not necessary

Crimping Details

Connection type & Cables used
workstation to workstation - Cross over
Workstation to server - Cross over
workstation to hub - Straight-through
Workstation to switch - Straight-through
Server to hub - Straight-through
Server to switch - Straight-through
Hub to switch - Cross over
Switch to switch - Cross over

Clear Memory without restart

If you run a windows computer you’ll know like many others than after a while your system will in doubt start running slow. Most people will restart their computer to remove and idle processes. But if there’s a simpler way, why restart every time windows decides it doesn’t like you today?

1. Right click on an empty spot on your desktop and select New - Shortcut.

2. Type %windir%\system32\rundll32.exe advapi32.dll,ProcessIdleTasks in the box.

3. Click Next.

4. Give your shortcut a nice name like “Clear Memory”.

5. Click Finish and you’re done.

Now whenever your computer starts running slow click this shortcut to clear out your memory and get your computer running at a normal pace again

Memory Support and Windows Operating Systems

Windows 2000 Memory Support. With Windows 2000 Professional and Server, the maximum amount of memory that can be supported is 4 GB (identical to Windows NT 4.0, as described later in this section). However, Windows 2000 Advanced Server supports 8 GB of physical RAM and Windows 2000 Datacenter Server supports 32 GB of physical RAM using the PAE feature of the IA-32 processor family, beginning with Intel Pentium Pro and later.
Windows XP Professional and Windows Server 2003 Memory Support. The maximum amount of memory that can be supported on Windows XP Professional and Windows Server 2003 is also 4 GB. However, Windows Server 2003, Enterprise Edition supports 32 GB of physical RAM and Windows Server 2003, Datacenter Edition supports 64 GB of physical RAM using the PAE feature.
The virtual address space of processes and applications is still limited to 2 GB unless the /3GB switch is used in the Boot.ini file. When the physical RAM in the system exceeds 16 GB and the /3GB switch is used, the operating system will ignore the additional RAM until the /3GB switch is removed. This is because of the increased size of the kernel required to support more Page Table Entries. The assumption is made that the administrator would rather not lose the /3GB functionality silently and automatically; therefore, this requires the administrator to explicitly change this setting.The /3GB switch allocates 3 GB of virtual address space to an application that uses IMAGE_FILE_LARGE_ADDRESS_AWARE in the process header. This switch allows applications to address 1 GB of additional virtual address space above 2 GB.The virtual address space of processes and applications is still limited to 2 GB, unless the /3GB switch is used in the Boot.ini file. The following example shows how to add the /3GB parameter in the Boot.ini file to enable application memory tuning:
[boot loader]
timeout=30
default=multi(0)disk(0)rdisk(0)partition(2)\WINNT
[operating systems]
multi(0)disk(0)rdisk(0)partition(2)\WINNT="????" /
Click here to more : http://www.microsoft.com/whdc/system/pla...