OpenRA

Hello! My first post here, apologies for a very n00b type question, I did a search already, couldn't see this asked already.

I play the regular C&C and RA on my Pentium II (twin 450mhz chips, 1gb ram, GT610 graphics) running on XP. I also play OpenRA on my modern Core I7. I wondered if openRA would run on the Pentium II, as there is a 32 bit package available. It downloads fine but throws an error "This is not a valid Win32 application" and I wondered maybe if it had been compiled to use SSE extensions, which the Pentium II does not have.

I appreciate I'm most likely out of luck here but I'm curious as to where the issue lies and whether anyone with knowledge on this would know?

Thanks so much everyone

Myulz