The case of the disappearing Outlook signature

A client, running a Windows 2008 R2 RDS/Citrix Xenapp 6.5 environment managed with RES Workspace Manager 2011 SR5, faced an issue with Outlook 2010 signature which disappeared with each new logon. Only a specific group of users was affected by this. Others had no problems at all. Read more

High CPU and Disk I/O when mapping Session Printers on W2K8R2 RDS

A client experienced Intermittent High CPU and Increased Disk I/O with SPOOLSV.EXE When Mapping TS User Session Printers on Windows Server 2008 R2 (Provisioned on Citrix Xenserver 6.0.2). A large amount of printers where mapped for each new user session. During the most logon extensive period in the morning the whole environment came to a grinding halt. After thorough investigation we noticed that with each client session starting heavy disk I/O was noticeable in the %system32%\spool\driver\3 folder. One could see the creation of a {GUID}-folder for each printer created during a session logon. The folder disappeared straightaway after the printer was mapped. Read more

Reducing Internet Explorer crashes in a RES WM environment

Citrix HDX Mediastream Blacklisting

There are certain situations in which HDX MediaStream for Flash fails for certain Website URLs. This happens as a result of certain web pages that have been designed to work in a way that is not compatible with the HDX architecture. These failures cannot be detected, so HDX has been designed to create and use a Dynamic Blacklist to remember Websites that provoke these failures. In these situations, the HDX feature falls back to server-side Flash rendering for the current browser tab that provoked the failure. Additionally, it uses server-side rendering for all future browser tabs that navigate to the failing URL Website. Read more

Hello world