An official PC version of WWE SmackDown! Here Comes the Pain does not exist. The game was released in 2003 exclusively for the .
Some vendors on sites like Amazon.in sell pre-loaded pendrives or DVDs containing the game and an emulator setup for Windows 10/11. Note that these are not official products from the original publisher. WWE Digital PC Games - GameStop wwe-smackdown-here-comes-the-pain-game-for-pc
Most users play on PC using the PCSX2 PlayStation 2 emulator. The game is listed as "Playable" with high performance on Windows and Linux systems. You would need a digital copy (ISO) of the game and a PS2 BIOS to run it. An official PC version of WWE SmackDown