cmdagent.exe slows down scrolling


When scrolling e.g. a PDF-file or in the software control panel of windows, with each scroll cmdagent.exe memory usage goes up to about 35% and then down again. This slows down the scrolling. E.g. each scroll in the software control panel takes up to 2 seconds.

What’s going on there?
Is that a bug or can I do something in configuration of CIS?


CIS 4.1.150349.920
Windows XP SP3

Is CIS Scanning your system?



I’m sorry, I don’t understand your question.
Do you mean whether CIS AV is scanning the system? No, it’s not installed.

The activity of cmdagent.exe is this: After opening the file or panel: One click on the scroll bar (or turning the mouse wheel) - cmdagent.exe activity goes up to about 35% for 1-3 seconds, during this time the application doesn’t react - then down to 0% - next click and it begins again.

Meanwhile I found out, that scrolling a PDF-file will only cause activity of cmdagent.exe, if I am using PDF X-Change Viewer. When using Adobe Reader or Foxit Reader cmdagent.exe remains on 0%.

But the deceleration of scrolling the software control panel still kills my nerves.

This behavior has not always been the case, I don’t know when it started (with updating to v.4?)

Deactivating Defense+ stops the reaction of cmdagent.exe

Defense±settings: General: safe mode, no boxes checked
Monitor: all boxes checked

cmdagent.exe is always busy (high usage), i think this is normal, maybe there will be a lower usage in version 5/2011.
You can always sumbit a ticket at


What version of Acrobat are you using?

Are anymore people experiencing this? What OS are you on?

I tried with a test version of the upcoming 2011 and I see no such thing happening on Win 7 x86 and Acrobat 9.3.3.

what do you have the av set to onaccess or stateful?

OS: Windows XP SP3 (see first post)

As mentioned before it is not Adobe Reader triggering this behavior, nor is it Foxit, it is PDF X-Change Viewer - and the software control panel of Windows XP.

As mentioned before, CIS AV is not installed, I am using Avast! Free v.5