The wsrv_creategame function isn't implemented for dedicated server in the 0.2b version of COOP or DIE but I found a hack for pass throught.

• Create the shortcut :
  wsrvquake2.exe +set wsrv_url rpc.aftermoon.net +set game coopordie +set maxclients 4 +set coop 1 +set deathmatch 0 +set wsrv_flags 8 +set dedicated 1 +set wsrv_changemap 1 +set name YourName
• When you are at the console, type wsrv_login YourPass
• And after type map q2dm1

And that's all, The dedicated server will host a game in the startmap with the teleporters, and the left teleporter will point to the saved map corresponding to the account used. You only need to type quit for quitting, logout is automatic. If you want to connect to your own dedicated server, use another account. If you can host a dedicated server, I suggest you to create a second account in COOP or DIE like YourNameDedicated. It will be more clear for others players.