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Use more than 4 GB of RAM with a 32bit OS

11 Sep

The answer can* be PAE.

*PAE may not be able to provide you with access to more that 4 GB depending on your O/S
Operating system Maximum memory support with PAE
Windows 2000 Advanced Server 8 GB of physical RAM
Windows 2000 Datacenter Server 32 GB of physical RAM
Windows XP (all versions) 4 GB of physical RAM*
Windows Server 2003 (and SP1), Standard Edition 4 GB of physical RAM*
Windows Server 2003, Enterprise Edition 32 GB of physical RAM
Windows Server 2003, Datacenter Edition 64 GB of physical RAM
Windows Server 2003 SP1, Enterprise Edition 64 GB of physical RAM
Windows Server 2003 SP1, Datacenter Edition 128 GB of physical RAM

To Enable PAE:

Original Boot.ini:

[boot loader]
timeout=0
default=multi(0)disk(0)rdisk(0)partition(1)\WINNT
[operating systems]
multi(0)disk(0)rdisk(0)partition(1)\WINNT=”Microsoft Windows 2000 Advanced Server”
/fastdetect

Change the Boot.ini to become:

[boot loader]
timeout=0
default=multi(0)disk(0)rdisk(0)partition(1)\WINNT
[operating systems]
multi(0)disk(0)rdisk(0)partition(1)\WINNT=”Microsoft Windows 2000 Advanced Server”
/fastdetect /PAE

For Bootcfg command, use:

bootcfg /raw “/pae” /A /ID 1

Thanks to tipandtrick.net

32-bit Windows operating system depends on PAE (Physical Address Extension) feature to use more than 4 GB of physical memory. On most Windows 2000 and Windows Server 2003 system, especially those run in NUMA mode on a NUMA-capable computer. PAE is disabled by default. PAE is enabled by default only if DEP (Data Protection Execution) is enabled on a computer that supports hardware-enabled DEP, or if the computer is configured for hot-add memory devices in memory ranges beyond 4 GB.

Thus, if PAE is not enabled in Windows 2000 and Windows Server 2003 (for example, if DEP is turned off by administrator), the system may not able to detect, identify and see more than 4GB memory, and will have to allocate slightly more than 3GB of memory for system and application only as some memory address space has to be reserved and mapped for system devices and peripherals.

To enable PAE in Windows Server 2003 and Windows 2000 (and Windows XP), append the /PAE switch to the end of the line of operating system in the Boot.ini file. To disable PAE, use the /NOPAE switch. The Boot.ini normally located in the root folder (i.e. C:\) with Read-Only and Hidden attributes, which are required to be removed before the file can be edited.

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My new favorite iPhone App – mobileairmouse

21 Aug

http://www.mobileairmouse.com/

A must have for any home theater setup. With this app you install the server on your HTPC and run the client app on the iPhone. The server can be a Mac or PC. On the iPhone you can use the screen like a laptop touch pad, with left and right click as well as a scroll bar. The app recognizes whether you are on your desktop browsing the web or in media center and offers additional controls depending on what you are doing.

Possibly the most interesting feature is the ability to hold a button on the screen and use the accelerometers in the iPhone to control the mouse by tilting the phone left, right, up down. It’s not a point and shoot thing, but can be very useful if you are willing to take the time to get the hang of it.

You can also fine tune the sensitivity for all movements and add tons of ‘keyboard’ shortcuts (really iPhone key shortcuts) for the different apps you are running on your computer. It was advertised at $6.99 but when I picked it up it was on sale for $2.99 and I have to say either price is worth it.

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Remotely Enable Remote Desktop

20 Aug

Ever built a machine, dropped it off in the server room with just a power cable and a network cable only to find out you can’t remote into it?

Don’t worry, you don’t need to lug a monitor down there, you can remotely enable remote desktop.

Go to start > run > type: regedit
Then hit ok.

In the registry editor click on file > connect network registry…
Enter the name of the remote machine and click ok.
Browse to the following key on the remote registry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server

Under the Terminal Server key, you’ll find a REG_DWORD value named fDenyTSConnection. Double-click on that value to open the Edit DWORD Value box and change the value data from 1 (Remote Desktop disabled) to 0 (Remote Desktop enabled)

Finally reboot the remote machine:


shutdown -m \\remotemachine -r

Thanks to oreilly

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Juniper VPN nc.windows.app errors

20 Aug

One of our clients uses the ‘zero configuration’ Juniper VPN instant Extranet web client.

Half of the machines we use to connect have encountered nc.windows.app errors, and googling this will provide a mess of suggestions.

Here are the ones we’ve encountered and their solutions:

nc.windows.app.24043 – A NC tunnel is already configured on the client
- Once the VPN was established the web client shows a button that says start. You click on start and get the above error. The issue is you are already connected, run ipconfig /all and see if you have receive an IP address from the other network.

nc.windows.app.23711 – The Network Connect session terminated
- Check to see if you have the mDNSResponder.exe service running (ctrl + shift + esc). End the service and try to reconnect. This is just a work around. The cause is either a CS3 Flash or iTunes service. The long term solution is to update the Bonjour service that is conflicting: support.apple.com/downloads/Bonjour_for_Windows

nc.windows.app.23712. The Network Connect session terminated. Do you want to reconnect?
- Check the client firewall. In our case the solution was performing a “network clean”. Stop the Juniper service from computer management. Uninstall any Juniper program from add/remove programs. Delete the following folders:
* C:\Program Files\Juniper Networks\Common Files
* C:\Program Files\Juniper Networks\Network Connect x.x.x
* C:\Documents and Settings\\Application Data\Juniper Networks\Network Connect x.x.x
Try to reconnect to the web client, reinstall any software.

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Error Applying Security: Access Denied

14 Aug

You receive the message: Error Applying Security: Access Denied when trying to propagate folder permissions to all sub folders and files. First take ownership of the root directory, then propagate ownership to all sub folders and files. After this completes re apply your folder permissions and propagate them to all sub folders and files.

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Posted in IT