Physical Memory Access Functions with installed Security Update 5Q5FJ4QW

Question

In my Labwindows-CVI (8.1.0) applications I use the Port-IO and Physical Memory Access Functions provided with the Utility Library to communicate directly to PCI devices. Up to now this works fine on about 50 different PCs using either only the CVI-Runtime or having different Labview or Labwindows versions installed.
Now I tried to install my software on a system with Labview 2011 installed. When starting my CVI-Program, it runs in a runtime-error and crashs. By searching in the Internet I found advices from NI about the Security Update 5Q5FJ4QW. In this paper NI wrote, that the functionallity of Physical Memory Access was eleminated with this update. The "UpdateValidator"-Software included in the NI paper showed me, that the appearence of this update is the reason for my software crash.
Here my questions:
 Is it possible to do Physical Memory Accesses in another way, even on systems with the actual Labview or Labwindows runtime installed?
 Is it possible to deactivate or deinstall the function of this update or the update (for example by replacing some files)?
 How can I communicate directly from my CVI program to my PCI-hardware?
Thanks in advance for any hints to get my application running again
Willi

Answer 1

Hello Willi,
According to this Knowledgebase:
Inwieweit betrifft mich das Sicherheits-Update 5Q5FJ4QW von National Instruments (NI)? (German)
http://digital.ni.com/public.nsf/allkb/3D3631A092D3033C8625793600572C90?OpenDocument
The only way of running your Applications without Runtime Errors (With the Patch installed) is to run with Administrator Privileges.
So i guess it would be best to try this Solution and run your Application with Administrator Privileges and not to try to Workaround the Patch.
You should be able to eather uninstall the Patch by replacing cvintdrv.sys with the unpatched Version.
Normal Windows Patches can also be deinstalled by using System Control.
Best Regards!
Moritz M.