Error When Installing with a Non-Admin Account

You may encounter an error when executing the installer MSI file if you are not an Administrator. For example:
OS Version Error
Windows 2003 The system administrator has set policies to prevent this installation.
Windows XP You do not have access to make the required system configuration modifications. Please rerun this installation from an administrators account / Error 1925. You do not have sufficient privileges to complete this installation for all users of the machine. Log on as administrator and retry this installation.

These error messages are due to not having permissions to install an MSI package as a non-admin account. Other than logging in as an administrator to install Connect, you may also ask that your Administrator grant the group policy access for non-admin users to install applications.

The following example shows you how to grant group policy access for non-admins to install software on Windows 2003:

  1. Launch the Microsoft Management Console (MMC).

    Go to Start menu > Run. Enter mmc and click OK to launch it.

  2. Add the Group Policy Object Editor Snap-in.

    In the MMC, go to the toolbar and select File > Add/Remove Snap-in.

    In the Add/Remove Snap-in window, click Add to bring up the Add Standalone Snap-in window.

    Select the Group Policy Object Editor and click Add.

    In the Group Policy Wizard window, click Finish. Close the Add Standalone Snap-in window, and click OK in the Add/Remove Snap-in window to save the changes.

  3. Grant the Windows installation group policy.

    In the MMC, navigate into Console Root > Local Computer Policy > Computer Configuration > Administrative Templates > Windows Components > Windows Installer.

    Locate Disable Windows Installer, right-click, and select Properties.

    In the Properties window, select Enabled from the radio button options, and select Never in the Disable Windows Installer. When finished, click OK.

    Close the MMC, click Yes to save the settings to a file. Reboot the computer to apply the changes, or execute the following command at a command prompt: 
    > gpupdate /force