Project VRC: Phase II UPDATED

Written by Thomas Poppelgaard. Posted in Project VRC

Ruben Spruijt, Jeroen van de Kamp have updated the famous “PROJECT VRC: Phase II” document.

Whitepaper contains new tests, comparing TS workloads on VMware vSphere 4.0, Citrix XenServer 5.5 and Microsoft Hyper-V R2:

The main updated findings of “Project VRC Phase II version 2.0” whitepaper are: 
• Considerable vSphere performance increase with VMware vSphere patch
• Update on best practices and recommended configuration
• Investigated: performance impact ASLR

Read the results  of the Whitepaper “Hyper-V 2008R2, vSphere 4, XenServer 5.5 on Intel Nahalem Xeon 5500”


Citrix XenApp 6 Migration Tool – Guided Tour

Written by Thomas Poppelgaard. Posted in XenApp

Citrix have posted a great  tour on “HOWTO migrate to XenApp 6 with the migration tool”

Download the “XenApp 6 Migration Tool – BETA”.

See the recored session of TechTalk “upgrading/migrating to XenApp 6”

SSO dosent work on Online plug-in v.12 here is the fix

Written by Thomas Poppelgaard. Posted in Online-plugin

With the release of the new 12.0 Online Plug-in for windows client, Single Sign On (SSON) might not work as it did in previous releases. As a result, SSON appears to not be configurable in the 12.0 client. This issue only affects customers using the Web Client and Web Interface; it does not affect Program Neighborhood Agent users. Citrix is working on a permanent solution

A temporary solution from Citrix:
Apply a regkey+add the webinterface to the clients trusted sites in the Internet browser.

Download the regkey here

Citrix XenConvert 2.1.1 – Released

Written by Thomas Poppelgaard. Posted in XenConvert


What’s New in Citrix XenConvert 2.1.1
This release adds many new conversion features.

Converting and Resizing Multiple Volumes
XenConvert can now convert and resize multiple volumes from a physical machine to all destinations:

•OVF Package
•Provisioning Services vDisk.

For conversions to VHD, OVF Package, and XenServer, XenConvert automatically resizes the virtual disk to accommodate the used space of the selected volumes, the free space requested for each volume, and any unallocated space requested for the virtual disk.

For the conversion to a Provisioning Services vDisk, XenConvert can automatically resize the volumes on the destination disk so they fit in the Provisioning Services vDisk by changing their amount of free space. After giving first preference to the Windows Boot Volume, the free space amounts of other volumes are allocated proportionately.

Faster Conversions

Most conversions now use OVF technology with dynamic (sparse) VHDs resulting in faster conversion times and lower free space requirements on the local disk.

Compatible with Project Kensho 1.3
XenConvert produces and consumes an OVF Package compatible with Project Kensho 1.3 including new features such as EULA and compression method.

Test XenServer Default Storage Repository
For conversions to XenServer, test the availability of a default storage repository required by XenConvert. Also, for conversions from ‘This Machine to XenServer’, test for sufficient free space on the default storage repository.

For further informations and download

Recent Comments

Server 2016 Support


Wonderful website. A lot of useful info here. I am sending it to a few friends ans also sharing in delicious. And obviously, thanks for your sweat!

Server 2016 Support

Thomas Poppelgaard


Thanks Jose, I have corrected the map plus updated the map so 29 datacenters are now alive.

Jose Brenes


Your map of Australia is wrong. You have put the state of Victoria inside the West Australian state.

Tobias K


Note that on XenServer 7.1, installing VDA 7.13 also works to enable vGPUs running XenDesktop 7.11 even using the newer “NvFBCEnable.exe -enable -noreset” command. Tested with an M60 using various profiles.



So how come version 3.11 doesn’t work for application switching?