I'm trying to install 64-bit 11gR1 database software on 64-bit Windows 7. I know it's not certified according to Note:952302.1. But I'm curious why it fails. Regardless whether I set setup.exe to older compatibility and Run As Administrator, once the OUI is launched (javaw.exe process is started) and I click the Next button, the screen disappears and javaw.exe process exits. There's nothing logged at C:\Users\<username>\AppData\Local\Temp\OraInstall<timstamp> The .err and .out files are empty. Any suggestion? Thanks. Yong Huang -- //www.freelists.org/webpage/oracle-l