Kaspersky Small Office Security 2 for File Server

Kaspersky Anti-Virus NDIS Filter is an interception-driver of network packets. Interception mechanism is implemented by the technology NDIS Intermediate Driver. This method of embedding into the system is recommended by the Microsoft Company as it provides maximum compatibility both with different OS’s versions and with other applications and drivers.

The established network connections might be broken during the application installation because of the new driver. The reason of the broken established connections is that the driver is embedded into the protocol stack (network card - protocol TCP/IP) by means of Windows meanwhile stack drivers are reinitialized; as a result established connections are lost/broken.

If two or more network connections are established in the system, then Kaspersky Anti-Virus NDIS Filter is embedded into each connection. No driver configuration is required.

What systems is the driver Kaspersky Anti-Virus NDIS Filter installed on?

Kaspersky Anti-Virus NDIS Filter is installed on the following operating systems only:

• Microsoft Windows Server 2008 R2 Foundation;
• Microsoft Windows Server 2008 R2 Standard;
• Microsoft Windows Server 2003 Standard.

Kaspersky Anti-Virus Filter uninstallation

Kaspersky Anti-Virus NDIS Filter can be deleted (uninstalled) from the system but it may lead to unwanted causes.

In order to uninstall the driver in the Local Area Connection Properties window select Kaspersky Anti-Virus NDIS Filter and click the Uninstall button.

Kaspersky Anti-Virus NDIS Filter will be removed from all network connections.

Restart your computer to successfully complete the driver uninstallation.

How does the application react once the driver Kaspersky Anti-Virus NDIS Filter is uninstalled?

	On operating systems: Microsoft Windows Server 2003 (32-bit)	On operating systems: Microsoft Windows Server 2003 (64-bit) Microsoft Windows Server 2008  (32/64-bit)
Kaspersky Small Office Security 2 for FS	Network packets are intercepted after the OS restart only by an additional interceptor	Firewall will not perform packet filtering and “catch” network attacks. Activity filtration will function partially. Functionality of other components will not change .

*In Kaspersky Small Office Security 2 for FS, installed on 32-bit OSs, interceptor of network packets is installed together with Kaspersky Anti-Virus NDIS Filter and starts functioning once Kaspersky Anti-Virus NDIS Filter is uninstalled.

It is strongly not recommended to disable Kaspersky Anti-Virus NDIS Filter by clearing the corresponding box in the Local Area Connection Properties window. The result of the new working mode of NDIS Filter might be incorrect work of the whole OS (for example, the OS might “blue screen”).

Re-installation of Kaspersky Anti-Virus NDIS Filter

1. Disable the program self-defense.
2. Open the Local Area Connection window.
3. In the properties window click the Install button.
4. Select Service and click Add.
5. In the Select Network Service window in the Network Service section select Kaspersky Anti-Virus NDIS Filter.
6. In the right lower corner of the window click the OK button.
7. If Kaspersky Anti-Virus NDIS Filter is missing in the list, then click the Have Disk... button.
8. In the Install From Disk window click the Browse... button and specify the path to the folder KLIMX86 (or KLIMX64). By default, the path is C:\Program Files\Kaspersky Lab\Kaspersky Small Office Security (for OS Windows XP) or C:\Program Files\Kaspersky Lab\Kaspersky Small Office Security.
9. In the folder KLIMX86 (or KLIMX64) select the file klim5.inf (for OS Windows Server 2003) or klim6.inf (for OS Windows Server 2008)
10. Click the Open button and then the OK button to start the installation process.

	Useful references
	Where can I view whether Kaspersky Anti-Virus NDIS Filter is installed? How to enable/disable self-defense of Kaspersky Small Office Security 2 for File Server?