Hi, I've recently upgraded to a Windows 7 - 64 Bits. I read in your forum that installing the All-Platforms version with a 64-Bit JVM is the best solution. I assumed this is correct since the Windows version of Oxygen can only install to the x86 version of my Program Files folder. Anyway, I can start Oxygen via the .BAT. I assume this is running the 64 bit JVM since I've already set my environment variable PATH to the jre6 folder. I've not yet edited my Xmx parameter, but I noticed that when I tried to open a saved project, I wasn't getting an Explorer window. I then clicked "Open" and got no results there either. <oup> <dataEngineer>Shaun McDonald</dataEngineer> <department>GAB-IT Content Architecture</department> <contact> <phone number="212-726-6149" extension="6149"/> <eddresses email="shaun.mcdonald@oup.com" messenger="shaunmc"/> </contact> </oup>