A few weeks ago I had to install an Oracle 11gR2 database on my local development machine. Unfortunately, the installer always crashed before starting the installation, causing an EXCEPTION_ACCESS_VIOLATION in the 64-Bit Server VM (1.5.0_17-b04 mixed mode) on Windows 7.
After a few hours of digging around it turned out that I had to remove my "Downloads.lnk"-link from the Windows desktop to get the installer to work. This is just crazy!
I included the stacktrace in the full article, just in case this might be useful for somebody.