I loaded OpenSolaris 2009.06 (Solaris 10) in VMware (Workstation 6.5.0 build 118166) on a AMD Athlon 64 X2 6000+ with x32 Vista, and upon powering up I get a message:
“You are running a 64-bit guest operating system, but the virtual machine is configured to run a 32-bit operating system. To ensure that a 64-bit guest operating system will function correctly you must:
1. Power off this virtual machine.
2. Change the guest operating system type to a 64-bit operating system in virtual machine settings.”
However, I found that after bypassing this message that the guest will run properly with no changes.