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About Virtualization, VDI, SBC, Application Compatibility and anything else I feel like
29 Mar // php the_time('Y') ?>
A user reported that the following error while visiting a website on a Citrix XenApp server:
I tried adding the site to the Trusted Sites List and adding the url to the Per Site Privacy list:
But this didn’t work, but I noticed that the site was “flickering” a lot so I suspected that HDX Flash Acceleration was the problem.
27 Mar // php the_time('Y') ?>
I needed to login as root on a Linux based virtual appliance to do some troubleshooting. In my case the appliance was running Suse Linux Enterprise.
I booted the VA using the Ubuntu Live CD and opened a Terminal. Then I used the cfdisk tool (sudo cfdisk /dev/sda) to view the partitions:
15 Mar // php the_time('Y') ?>
If you want to Create an Active Directory group with PowerShell there are a few things you need to be aware of:
First of all there is no direct way to create new objects in Active Directory. You always need to bind to the Domain or an Organizational Unit and call the Create method.
Example:
1 2 3 4 5 6 | # Bind to OU $ou = [ADSI]"LDAP://OU=OU=Groups,DC=Contoso,DC=COM" # Create the Group $group = $ou.Children.Add("CN=TestGroup", "Group") $group.CommitChanges() |
However the group is not yet complete:
15 Mar // php the_time('Y') ?>
When Launching a PowerShell script I noticed the following error: “AuthorizationManager check failed.“
This happens because either the Current User or the All Users PowerShell profile is empty.
14 Mar // php the_time('Y') ?>
Interesting case today: customer uses Imprivate for two factor logon in combination with Citrix XenApp.
Users reported that logons failed after they had changed their password. After contacting the users we learned that this only happened with special characters in the password like ! and +.
To do the actual logon to Citrix Imprivata uses an executable which is actually an AutoIT script compiled to an executable.
After authentication the executable get’s the password from the Imprivata Appliance.
I decompiled the executable to source and read the line that passes the password to XenApp:
13 Mar // php the_time('Y') ?>
Last week I wrote about an error message the users received when opening documents from SharePoint.
The article showed how to fix the problem but it didn’t feel good that I didn’t know where this “TreatAs” value was coming from.
I figured that I could read the timestamp key from the registry to see at what/date time the value was created. This value can be read using the RegQueryInfoKey API but there are various tools that can read it.
12 Mar // php the_time('Y') ?>
I wrote a small tool that dumps all stored password for the Microsoft Lync Client that I’d like to share here.
It’s a commandline tool that takes no arguments:
Have fun with it!
Lync Password Dumper (6137 downloads)9 Mar // php the_time('Y') ?>
Today I was troubleshooting a message that appeared when a user tries to edit a document from SharePoint on a Citrix XenApp server.
The user browsed to a word document on Sharepoint and selected “Edit in Microsoft Office Word” from the Combobox:
This would present the following error message to the user:
7 Mar // php the_time('Y') ?>
Yesterday I showed a video demonstrating it’s possible to run multiple instances of the Microsoft Lync 2010 client simultaneously.
A little warning before we go on: the Lync Client was not designed to run with multiple instances. Or better said: it was designed specifically to prevent this, let’s see how it does this:
On startup Lync calls an internal function called COcAppNoUI::InitializeMainInstance. In this function it creates a Mutex named “Office Communicator_” in the Global namespace. It also creates an Event in the Global namespace called “COMMUNICATOR-“.
When a second instance of Lync is launched it checks if the Global Mutex exists and if it does it fires the Global Event. The Main instance has a thread that waits for this event using the WaitForMultipleObjects API.
6 Mar // php the_time('Y') ?>
This video shows that’s it’s possible to run multiple instances of the Lync 2010 client.
I am running natively, so I am not using ThinApp or App-V.
I will follow this up later with a how-to blog.