Article ID: 2491951 - Last Review: August 12, 2011 - Revision: 4.0

You cannot install Exchange Server 2010 SP1 if the domain NetBIOS name contains an ampersand character

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SYMPTOMS

Consider the following scenario:

The Active Directory domain NetBIOS name contains an ampersand (&) character in a Microsoft Exchange Server 2010 environment.
You try to install Exchange Server 2010 Service Pack 1 (SP1) on a server in the environment.

In this scenario, the installation fails. Additionally, you receive the following error message:

An error occurred while parsing EntityName. Line7, position 12.

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CAUSE

This issue occurs because the ampersand character is a reserved character in XML. Therefore, the character causes the parsing for current logon user to fail.

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To resolve this issue, follow these steps.

Note This issue is resolved in Update Rollup 4 for Exchange Server 2010 Service Pack 1. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

2579150 (http://support.microsoft.com/kb/2579150) Description of Update Rollup 4 for Exchange Server 2010 Service Pack 1

Copy all the installation files from the CD to a hard disk, and then open the ManageScheduledTask.ps1 file in the scripts folder.

Locate the following lines:

function Get-CurrentUserName 
{ 
[System.Security.Principal.WindowsIdentity]$id = [System.Security.Principal.WindowsIdentity]::GetCurrent() 
$id.Name 
}

Change the lines as follows:

function Get-CurrentUserName
{ 
[System.Security.Principal.WindowsIdentity]$id = [System.Security.Principal.WindowsIdentity]::GetCurrent() 
[System.String]$fixedName = $id.Name.Replace('&','`&amp;') 
return $fixedName 
}

Save the file, and then try to install Exchange Server 2010 SP1 from the hard disk.
Install the following update:
2579150 (http://support.microsoft.com/kb/2579150/ ) Description of Update Rollup 4 for Exchange Server 2010 Service Pack 1

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