Huge memory use spike after installing Spybot.. Need Help.

After I installed Spybot SD, Internet Explorer 7 memory usuage jumps up to 160mb when browsing usual sites with only one tab... Also I have AVG also installed and it has a background monitoring program "avgrsx.exe" which is like "teatimer.exe" but do i need to use both, or which do i use if only one.? Thank you..

re...

They are the newest... and i know they arent the same thing, i am saying that they both have background monitors, avgrsx.exe is avg's and teatimer.exe is spybots. Do i need both. and why the huge memory spike on internet explorer 7 after installing spybot