If you have a 64-bit operating system installed, and are installing programs that are not nativly 64-bit, then they will be installed to the x86 folder automatically. Native 64-bit applications will install to the regular Program Files menu.
You can change which file the programs install into on most programs by selecting a custom install option
this means the SEP is running as 32 bit application in 64 bit server ?
Some programs are not compatible with a 64-bit operating system though