RES Software Workspace Manager ‘s AppGuard is unable to protect your session

During one of the projects I’ve worked on we did a Citrix XenApp deployment with RES Automation Manager, as we were using building blocks the deployment was up and running in no time. The usual software was installed on this server: Office, Adobe Reader, RES Workspace Manager and some other supporting components (Flash, Shockwave, Silverlight etc) and my initial tests came out positive but after installing the PVS Target Device Software I got a strange error when starting RES Workspace Manager while starting a new session:

AppGuard is unable to protect your session

So I opened a ticket with our local heroes from RES Support (Thanks again Dennis!) and they went out of their way to give some support on this issue, I had to send a Instant Report to them so they could rebuild the environment. I explained that I installed the Target Device Software using a method I blogged about earlier here. Of course I searched on the knowledge base from RES Support and I found the following two articles but they didn’t solve this problem:


In the end the solution was pretty easy, we moved the installation of the PVS Target Device Software to the beginning of the runbook as we concluded it had to be something in the order the filter drivers where installed. RES WM2012 has a new feature called Process Interception which uses a filter driver and it looks like this causes issues with the filter driver that’s installed with the PVS Target Device Software.



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Kees Baggerman

Kees Baggerman is a Staff Solutions Architect for End User Computing at Nutanix. Kees has driven numerous Microsoft and Citrix, and RES infrastructures functional/technical designs, migrations, implementations engagements over the years.

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