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    • Error 1721

      Error 1721

      This is an error commonly witnessed when you try to uninstall a program using the "Add or Remove Programs" in Microsoft Windows XP. The message itself will read: "Error 1721. There is a problem with this Windows Installer package. A program required for this install to complete could not be run. Contact your support personal

    • Device Driver has corrupted the executive memory pool

      Device Driver has corrupted the executive memory pool

      If you receive an error message which reads: Windows error "Device Driver has corrupted the executive memory pool., it basically means that there is a corruption with a driver somewhere on your system. This issue can occur when an attempt to touch invalid memory at a process IRQL that is too high occurs. This is

    • mfefire.exe

      mfefire.exe

      Mfefire.exe is McAfee Anti-virus Firewall Service’s process. The McAfee Firewall prevents malicious programs from installing themselves or third party components on the computer. Mfefire.exe is not a system process, but is required to run the McAfee Firewall. Mfefire.exe generally runs on the Windows Operating System and can be found in the primary hard drive’s Program

    • Active Directory Security Principal Accounts

      Active Directory Security Principal Accounts

      Understanding Active Directory Security Principal Accounts Active Directory consists of a considerable number of objects, and variety of objects, of which, security principal accounts are one. Security principal accounts are Active Directory objects that are assigned unique security identifiers (SIDs), and are therefore used in authentication and Active Directory security. A security principal account can

    • Planning DNS Zone Replication

      Planning DNS Zone Replication

      A DNS zone is the contiguous portion of the DNS domain name space over which a DNS server has authority or is authoritative. DNS zones contain either domains or subdomains. The DNS namespace can be divided into multiple zones. Users can even host all their zones on a single DNS server. The Windows Server 2003

    • Managing Exchange Server Connectivity Across Firewalls

      Managing Exchange Server Connectivity Across Firewalls

      Using Firewalls To Prevent Unauthorized Access The method, by which you can physically secure the network, is through the usage of firewalls. While firewalls provide some level of physical security, you should bear in mind that firewalls are just barriers which make it difficult for intruders to attack the network. Firewalls are categorized as follows:

    • Replication Topology in Active Directory

      Replication Topology in Active Directory

      Replication Topology is the route by which replication data travels throughout a network. Replication occurs between two domain controllers at a time. Over time, replication synchronizes information in Active Directory for an entire forest of domain controllers. To create a replication topology active directory must determine which domain controller's replicate data with other domain controllers.

    • How to Delete Deleted Files Permanently

      How to Delete Deleted Files Permanently

      Contrary to popular belief, deleting files from the Recycle Bin does not completely remove the file from the computer. Instead, deleting a file simply tells the computer that the memory it was using is no longer needed. When the computer needs the memory for other files, it overwrites the original information. However, until the file

    • How to Remove IPv6 in Windows

      How to Remove IPv6 in Windows

      IPv6 stands for Internet Protocol version 6. IPv6 is the latest version of the network-layer protocol for packet-switched networks. The version that is generally used is IPv4. One of the reasons for the upgrade to IPv6 is that it allows greater space and flexibility in assigning IP addresses. For instance, IPv4 is based on a

    • How Do I Open XLS Attachments?

      How Do I Open XLS Attachments?

      An XLS attachment is an attachment for the Microsoft Office Excel program. This program allows for easy to make spread sheets. When you save the file, it is saved as a .xls. You can easily email an individual with a XLS attached and opening them is easy. The problem comes when you don’t have Excel

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