When you uninstall Exchange 2007 you need to remove all Mailbox- and Public Folder databases. If you try to remove the Public Folder Database this will fail because there are replicas of the system folders in the Public Folder database. I didn’t find a way to remove these replicas from the Exchange Management GUI but it can be done with the following Powershell Code:

Get-PublicFolder -Server <exchange server> “\” -Recurse -ResultSize:Unlimited | Remove-PublicFolder -Server <exchange server> -Recurse -ErrorAction:SilentlyContinue
Get-PublicFolder -Server <exchange server> “\Non_Ipm_Subtree” -Recurse -ResultSize:Unlimited | Remove-PublicFolder -Server <exchange server> -Recurse -ErrorAction:SilentlyContinue
Get-PublicFolder -Server <exchange server> “\Non_Ipm_Subtree” -Recurse -ResultSize:Unlimited | Remove-PublicFolder -Server <exchange server> -Recurse -ErrorAction:SilentlyContinue

(change <exchange server> to the name of your Exchange Server)

For a long time now people have asked for a version of LaunchRDP that includes the Connection Bar. The original version was originally written for a very specific purpose and I never anticipated so many people would want to use it. But it seems that a lot of people like the Connection Bar (I hate it, especially with sessions in sessions, so that’s why I am using RDPWithLocalTaskbar).

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A few days ago I noticed that an unattended installation of Citrix XenApp 5 was installing very slowly. When I looked at the various jobs and their installation time in the (Altiris) Deployment Server I saw that it was the Citrix Access Management Console that took almost 45 minutes to install:

It was clear that this wasn’t normal since the install job is taking installing OS components like IIS and all subcomponents, activating Application Server and reboot in around 9 minutes. The installation of Citrix XenApp itsself takes only 14 minutes.

I searched with Google and one of the first links was this knowledge base article from Citrix: Slow Access Management Console Installation on XenApp 5.0. The article clearly describes that the delay is occurred by failing checks for Publisher’s and Server Certificate Revocation (because there’s no Internet Connection) and suggests to turn these checks off. Indeed my servers do not have a direct internet connection so the cause and solution were clear.

And actually I had seen similar issues before in other (non Citrix) installations, some examples are Exchange 2007 (here and here) and SQL Server 2008 (the SQL Installer actually checks if there’s an internet connection in the prerequisites check).

The suggested, manual way, of turning of these checks is to clear the following checkboxes in Internet Explorer’s advanced settings Dialog:

But since I had to do this on many servers I decided it would be better to do it with a little VBS script.

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I was deploying an unattended installation of Citrix XenApp 5.0 with Altiris Deployment Server. The installation consists of several prerequisites, the installation of XenApp and finally the Citrix Management Consoles.

The installation is performed with a special account and not the Local System account because the install packages are located on the network.

When testing the deployment on a Windows Server 2008 I noticed that sometimes MSI based installations would fail with error code 1603 or 1601.

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My work e-mailbox is hosted on an Exchange server and is very limited in size (only 100 MB) so I use a PST file to archive mail when it’s full. This has of course several disadvantages such as possible corruption on the PST and some limitations. I open my mailbox from severals places: Outlook on my laptop, Outlook Web Access remote (no PST available in OWA), Outlook from my Virtual Desktop (no PST since it’s located on my laptop) and so on.

Then I got the idea to create a seperate GMail account and use that for archiving. I added the new account as IMAP mailbox in Outlook and create some folders & subfolders in it:

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I just installed my laptop with Windows 7 (x64) and I was curious how the new Windows XP mode worked (more on that topic later). After installing it I could no longer start any Virtual Machines in VMWare Workstation. The VM fired up but immediately halted with the following error: “VMware Workstation unrecoverable error: (vcpu-0)” “VCPU 0 RunVM failed: -2”.

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In a previous post I wrote about patching update.exe to allow installing updates with modified .inf files.

A commenter asked how to do this for another build of update.exe, specifically version 6.3.4.1 as is distributed with Windows 2003 SP2 (now what would he want to do with it?).

This is actually a very easy task with the knowledge of the previous post, so let me explain it here step by step.

First we open the target file in Ida and wait for the Autoanalysis to finish. Then go to the Functions window and look for the function IsInfFileTrusted:

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As you may know the 32 bit, also called x86, editions of Windows Vista cannot address more than 4 GB of memory. You may think this 4 GB is a limit of the processor but this isn’t true; using Physical Address Extension (PAE) it’s possible to address more memory

Enterprise Server versions of Windows (2003 and 2008) can already address more than 4 GB of memory so why can we not do that with Vista? The answer is: Microsoft doesn’t want that! It is all just a licensing matter, we can see this in the registry. Take RegEdit and goto HKLM\CurrentControlSet\Control\ProductOptions and doubleclick the Value ProductPolicy, scroll down a little until you see the value “Kernel-PhysicalMemoryAllowedx86”, next to it is the value 01 00 which corresponds to 4096 (1000 is the Hex of 4096):

We can also see where this (and other licensing values) come from: if we look in %systemroot%\system32\licensing\ppdlic al license values are in XML files. The memory value is in Kernel-ppdlic.xrm-ms:

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I was installing Dell Deployment Solution (the Dell branded version of Altiris) and at end of the installation you can choose to add drivers for scripted installed. If you do it asks for the Dell Systems Build and Update Utility DVD in order to install drivers for scripted install:

I searched on the Dell site for this DVD but the only version I could find was a version of 20-11-2008 (5.5.1 AA00) with the filename OM_5.5.1_SUU_A00.ISO and it is not accepted by the installer:

What a helpfull message 😉

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In this topic I just want to show(case) you something I created in the past. It is a management console that enables delegated management in a Terminal Server or Citrix environment.

The console is launched by a small executable that check credentials (based on group membership) and then launches an RDP session with the actual console in it. The logic behind it is that the RDP session runs with an account with delegated permissions in Active Directory and the actual user account that logs in here doesn’t have any permissions at all.

This is the login screen:

If you’ve passed the login screen you enter the Main Console which consists of a Treeview on the left with possible options and a work area on the right:

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