That is the elephant in the room. If you search for a native PC executable (an .exe file) for SVR 2011, you won't find a legitimate one. THQ (the publisher) only released the game on:
While there is no official native PC version of WWE SmackDown vs. Raw 2011 WWE-SmackDown-Vs-Raw-2011-PC-Game-Free-Download
WWE SmackDown vs. Raw 2011 is widely considered a high point for the series, serving as the final entry under the "SmackDown vs. Raw" branding. It was originally released for consoles like the Xbox 360, PS3, Wii, and PS2. That is the elephant in the room