Hello, Whenever I try to extract the 64bit archive for Argyll v1.5.0 or v1.5.1 to any location on my computer, Real-time Protection of MSE stops. I'm running Windows 7 64bit and have been noticing MSE shutting down intermittently for the last few months. I never expected it was Argyll CMS. Recently I did a fresh install and everything was fine until I installed Argyll CMS 64 bit v1.5.1. Immediately MSE stopped. I then manually started the MSE service. I then tried v1.5.0 64 bit and MSE shut down again. After re-starting MSE I tried both the 32 bit v1.5.0 and 32 bit v1.5.1 archives and both did not affect MSE. This behaviour is very odd and I'm wondering if anyone else has seen it or has any ideas? Also, do I need to run the 64bit version of Argyll with 64 bit Windows 7 and DispcalGUI or can I run the 32 bit version of Argyll with my Windows 64 bit? I thought I only needed an Argyll 64bit USB driver for compatibility with Windows 64bit? Shouldn't all the 32bit Argyll executables work in a CMD shell under Windows 7 64bit? Thanks for any help - Phil