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Hi, In the course of or even following an installation of XenApp Basics 3.0 for Windows Server 2008, this error shows up while changing to Advanced Mode

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Create Active Directory structure failed:
Unhandled Error: The requested mode is invalid.


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# Comment Id: 58992

Hi Wallace!

Sorry to hear (or read) that you are having difficulties with installing XenApp 3.0 :(

This is a known issue for Windows Server 2008 R2 being compatible with XenApp 3.0/6.0 -

(also for Windows Server 2008 x64 & x86 for XenApp 5.0)

Here's the cause:

The domain and forest for "Win Server 2008 R2" are both not supported in the DomainMode enumeration function in versions earlier than Framework 4.0

All you need to do is to apply a fix for this and you should be good to go:

Solution 1:

Download this file on Microsoft

Or Solution 2:

1.  Click on Start

2.  Type Administrative Tools on the search bar on top of the windows # button

3. Click on Active Directory Module for Windows PowerShell.

3.1) Now, @ the PowerShell prompt, please type:

"Set-ADDomainMode -Identity domain_name - DomainMode Windows2008Domain"----

You need to replace the "domain_name" with the old fully qualified domain name)

When asked to confirm the operation, type Y, and press Enter.

Also please note that it wouldn't be possible to lower the DFL to Windows 2008 if the FFL is set to Windows 2008 R2.

Hope that helps!


Paul Pinalb