Microsoft Excel Not Enough Memory or Disk Space

During a recent Deployment of XenApp 7.6 on Windows Server 2012 R2 when users ran an application that exported data to Excel they kept getting this error.

Checking the XenApp session host server which was sized at 2vCPU and 8GB of RAM there was plenty of memory available as there was only one users logged into the server. Launching Excel then opening a workbook was fine and did not result in the error and after patching Office 2010 to the latest patch the error still persisted. After investigating there was no reason why this error would appear.

It would appear that this is a bug in Excel 2010 and Excel 2013 running on Windows Server 2012 R2 and excluding AppData\Local with Citrix Profile Management which is done to reduce the size of profile. With this configured the Cache folder ends up not having allocated enough space, the folder is part of the User Shell Folders in their profile.

The solution. Redirect the user Cache directory to C:WindowsTemp, but doing so without the need to load the hive and hack the default profile’s NTUSER.dat.

First assign Users Modify rights to C:WindowsTemp, otherwise they will not have access and this will not work.

Create a GPO Preference Registry Collection named something descriptive such as Excel Cache Directory

Create a new Registry Item pointing to: HKEY_CURRENT_USERSOFTWAREMICROSOFTWINDOWSCURRENTVERSIONEXPLORERUSER SHELL FOLDERS
The Value Should be Cache
The Data Should be C:\WINDOWS\TEMP
The Type Should be a REG_EXPAND_SZ

Allow for the GPO to replicate and run a GPUPDATE /FORCE and test and you should no longer see the error.

The next time you encounter this issue give this a try. For more information please leave a comment.

Johnny Ma @mrjohnnyma

How to Fix Java issues with Citrix Netscaler GUI

We have all encountered the dreaded Java error when trying to connect to the Citrix Netscaler GUI.  In this post I would like to walk through the steps of resolving those Java error messages. There are a few technical articles that TRY to walk you through the process of troubleshooting this issue, but I have found the method that I use to be the most successful.  For me this is one of the most frustrating error messages, as I am constantly working in different versions of Java, Netscaler firmware or browser.

For starters, lets go ahead and uninstall any version of Java you currently have installed.  Most versions of Netscaler 10.1 and above will support the most recent version of Java.  You can download the most recent version Here.  For this exercise, we are going to assume you are using chrome, Firefox or IE.  In my experience, I have had the most success with the Netscaler GUI and the Chrome browser.

After you have successfully installed Java and went through the confirmation process go ahead and browse to your java configuration applet or go to control panel > Java (32bit).

Once the Java Control Panel pops up, click on the Settings button.

You will now be redirected to the Temporary Internet files dialog.  First, click on the “Delete Files” button

One the “Delete Files and Applications” box appears, UNCHECK all of the checkboxes and click OK.

Before clicking out of the Temporary Internet files dialog, make sure to uncheck ” Keep Temporary files on my computer” and click OK.  Having all of these temporary files are one of the main causes for applet corruption.

That last set of steps will clear out all the previously downloaded temporary applets, cookies and certificates you currently have in your configuration.  If you are launching java for the first time after the new install this might be a moot point, but I do it anyway 🙂

Now, stay in the Java Control Panel and at the top, click on the “Security” Tab.  Inside of that tab, click on “Edit Site List” at the bottom.

Once you have clicked on Edit Site list, Click on Add.  Here you will be able to add the Netscaler access gateway FQDN as an exception.  Only add websites here that you know you can trust their certificate.

After you click add you will notice a text box appear in the same window.  Go ahead and add your Netscaler FQDN into that field and click OK  example:  Https://yournetscaler.yourdomain.com

After clicking OK, you will notice your Netscaler FQDN is now in the exceptions list.  Click Ok to exit the Java Control panel and relaunch your browser to test.

 

This article applies to Netscaler versions 9.3, 10.0, 10.1

Let me know how it goes.  Add your comments below!

 

 

Kevin B. Ottomeyer @OttoKnowsBest

 

 

Configuring Citrix Storefront Domain Pass-through with Receiver for Windows

I would like to discus the procedure for configuring and implementing Domain Pass-through with Citrix Storefront and Citrix Receiver.

First things first, let’s get a receiver installed on a test machine.

****Note, this machine and all subsequent machines must be a member of the domain that your storefront server is currently attached to in order for the pass-through to work.

Download the Citrix receiver Here

Once downloaded find the path of your download location.  Now, we will need to install the receiver with the single sign on switch as follows:

This will install the receiver, enable and start the single sign-on service on that machine.  After your installation is completed and the machine is rebooted,  log back in to your workstation and double-check to make sure the ssonsvr.exe service was installed and is currently running under services.

Once you have confirmed.  Lets move over to your Storefront server.

Launch the Storefront administration console from the storefront server and on the left side of the console, click on Authentication.

Once authentication is selected move over to the right side of the console screen and under actions > authentication, click on add/remove Methods.

After clicking on Add/Remove Methods, a dialog box should appear with options to select what methods you would like to enable in Storefront.  The second option from the top is, “Domain pass-through”, click on the check box next to that option and click OK.  This will enable Storefront to take the credentials from the ssonsvr service on your workstation and pass them through Storefront and enumerate the app list without authenticating twice.

Depending on your Citrix infrastructure, you might need to propagate the changes to the other Storefront servers in your Server Group.  If you have more than one Storefront server and you do not propagate changes, you might see mixed results in your testing.

To do this, click on “Server Group” on the right side of the console and then on the left side under actions, click on “Propagate Changes”.    This action will replicate all the changes you just made to your authentication policies over to the other Storefront servers in your Server Group.

Now that you have all the configuration pieces in play, reboot the workstation you installed the receiver to and log back in.  Once logged in your should be able to right-click on the receiver and click open.  Receiver will now prompt you for your Storefront FQDN or email address if you have email based discovery enabled.  At this point your application list should enumerate without prompting for credentials. This also goes for the Web portal. Test both to make sure they are passing those credentials through appropriately.

********If your credentials still do not pass through, below are a few troubleshooting steps you can take.  Of course this all depends on how your environment is set up and what access you have to modify certain components in your windows infrastructure.

Modifying local Policy to enable pass-through on the workstation

Apply the icaclient.adm template located in C:\Program Files\Citrix\ICA Client\Configuration to the client device through Local or Domain Group Policy.

Once the adm template is imported, Navigate to Computer Configuration\Administrative Templates\Classic Administrative Templates\Citrix Components\Citrix Receiver\User authentication\, then double-click on the “Local user name and password” setting.

The following box should appear and make sure to select both “Enable pass-through authentication” and “Allow pass-through authentication for all ICA connections”.

Adding Trusted Sites in your browser

On the same workstation you are testing the pass-through.  Open IE and navigate to Tools > Internet Options.  Click on Trusted Sites and add your Storefront FQDN (the same address you entered into the receiver when you set it up.

Also, it wouldn’t hurt to configure pass through in IE.  In The Internet Options Security tab with Trust Sites selected, choose Custom level, security zone. Scroll to the bottom of the list and select Automatic logon with current user name and password.

Configure the NIC provider order

On the workstation you installed the receiver, launch control panel and click on Network Connections, choose Advanced > Advanced Settings > Provider Order tab and move the Citrix Single Sign-on entry to the top of the Network Providers list.

If you are still having problems with the receiver not passing the credentials, leave a comment with your specific issue.

References:

https://www.citrix.com/downloads/citrix-receiver.html

http://support.citrix.com/article/CTX200157

 

 

Kevin B. Ottomeyer @OttoKnowsBest

 

 

 

 

Enable Alt+Tab Application Toggling in a Citrix XenApp Desktop Session

I recently had a request for a user to be able to toggle between different applications inside their Citrix desktop session with alt+tab. The Citrix receiver provides this functionality with a registry change. There are a couple ways to send the hot key combo of Alt+tab to the Citrix session, but below I will show how to pass the physical hot key combo of Alt+tab from the client workstation to the Active Citrix session window (non-fullscreen mode).
This work will be done on the Client workstation and I am assuming the client has Windows 7 with Citrix receiver installed.
My background information was found here:
http://support.citrix.com/article/CTX118974
http://support.citrix.com/proddocs/topic/ica-settings/ica-settings-transparentkeypassthrough.html
1. Open regedit on the client device to edit the registry
2. Navigate to the key
HKEY_LOCAL_MACHINE \SOFTWARE\Citrix\ICAClient\Engine\Lockdown Profiles\All Regions\Lockdown\Virtual Channels\Keyboard\
3. Open Key: TransparentKeyPassthrough
4. Set the value to: Remote

5. Exit the Citrix receiver if it is started and log back into your Citrix desktop.
6. When the Citrix desktop session is the Active window, you will be able to toggle between the applications in that session with Alt+Tab