Thanks everyone. Running "setup -ignoresysprereqs" or "setup -ignoresysprereqs -debug" without setting compatibility doesn't make any difference. Setting compatibility, it doesn't even launch the OUI GUI. With -debug, the console window shows starting JVM right before the window disappears (i.e. closes). I find the error log at C:\Users\<username>\AppData\Local\Temp\hs_err_pid<pid>.log: # # An unexpected error has been detected by HotSpot Virtual Machine: # # EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x0000000008178d75, pid=5208, tid=4648 # # Java VM: Java HotSpot(TM) 64-Bit Server VM (1.5.0_11-b03 mixed mode) # Problematic frame: # V [jvm.dll+0x178d75] # ... VM state:not at safepoint (normal execution) VM Mutex/Monitor currently owned by a thread: None ... But I can't find anything on Google or MOS about that hex location inside jvm.dll. There's a Sun JVM bug for Solaris about signal 11. The developer can work around it by lowing memory usage of JVM with his code, but unfortunately, not with -Xmx setting. I use Process Monitor to filter on javaw.exe process. Right before the process creates the hs_err_pid log, it tries to find DownBtn.GIF without success. But I doubt that's the real cause. I'll try two more things: use -jreLoc to point to a newer JRE (current version is 1.5.0); find the correct xml file and lower -Xmx setting. Yong Huang --- On Fri, 8/12/11, Michael Dinh <mdinh@xxxxxxxxx> wrote: ... > On Aug 12, 2011, at 4:44 PM, "Yong Huang" <yong321@xxxxxxxxx> > wrote: > > > 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