Error message when you try to synchronize a Dynamics CRM 4.0 client to Outlook: "An unknown error occurred while synchronizing data to Outlook"

SYMPTOMS

You may receive the following error message when you try to synchronize Microsoft Outlook with a Microsoft Dynamics CRM 4.0 Citrix client:

An unknown error occurred while synchronizing data to Outlook.

This issue occurs because, by default, Microsoft SQL Server CE does not support mapped drives.

Note SQL Server CE requires UNC paths.

To resolve this issue, follow these steps:

Install Microsoft Dynamics CRM 4.0 Update Rollup 20. For more information about how to download and install Microsoft Dynamics CRM 4.0 Update Rollup 20, visit the following Microsoft website:
http://www.microsoft.com/download/en/details.aspx?id=28011
(http://www.microsoft.com/download/en/details.aspx?id=28011)
Update the environment configuration settings in the Microsoft.crm.se.orgdborgsettingstool.exe.xml file.

Note By default, the Microsoft.crm.se.orgdborgsettingstool.exe.xml file is located in the following folder:
\Program Files\Microsoft Dynamics CRM\Server\bin\Tools
Update the ClientExpandPathsToUNC database setting by using the Microsoft.crm.se.orgdborgsettingstool.exe tool. To do this, follow these steps:
1. Start the Microsoft.crm.se.orgdborgsettingstool.exe tool.
  
  Note By default, the Microsoft.crm.se.orgdborgsettingstool.exe file is located in the following folder:
  \Program Files\Microsoft Dynamics CRM\Server\bin\Tools
2. Type the following command, and then press Enter:
  microsoft.crm.se.orgdborgsettingstool update crm_organization ClientExpandPathsToUNC TRUE
  Note In this command, the crm_organization placeholder is the name of your organization.
Verify the updated setting. To do this, type the following command, and then press Enter:
microsoft.crm.se.orgdborgsettingstool retrieve