how do i make the game play

OK, I quit playing for a few weeks and built myself another pc. I went to redownload perfect world and aparently I clicked on some arc button and dl it. I was playing pwi for about 20 mins and turned it off. For some reason it didn't make a perfect world shortcut on the desk top for me. How do I start the game again? I went to the element.exe int he program files and it wouldn't start. I tried opening the arc thing and it just wants me to install agin. I won't be installing multiple times on my ssd drive. I'm using windows professional. I'm geussing I'm missing something obvious.
Also once I get it open agin how do I multi client now?