I have just came across this in the technet forums. Most are claiming a dramatic improvement in IE8. A few have had no noticeable change. Open a command prompt and enter this regsvr32 actxprxy.dll reboot. P.S. Later. There has been a follow up,before you plunge in. This guy is obviously a programming expert. I would also add that there is no way to succesfully remove it again, without ruining your IE8 installation: "Regsvr32 is a very simple tool that simply loads a binary and calls its DllRegisterServer, DllUnregisterServer, or DllInstall function, depending on the switch you pass it. I sat down and spent some time disassembling actxprxy.dll… and to no surprise the DllRegisterServer function simply calls NdrDllRegisterProxy with a bunch of interfaces to register. I also conducted a few experiments. First, I exported portions of my registry to file and tried re-registering the DLL. After re-registration, I used WinMerge to compare the two files and noticed zero (relevant) changes. Second, I tried unregistering the DLL. Internet Explorer immediately malfunctioned and ultimately ceased to work at all, indicating the library had to have already been registered. As a result of some pretty simple testing, I’ve come to the conclusion that reports of success with this wanna-be tweak are no more reliable than the average Bigfoot sighting. That is, people see what they want to see. I did hear from a reader, however, that adding /prefetch:1 to your Internet Explorer shortcut speeds things up wonderfully. *grin*"