1. Go to desktop.
2. Right click, scroll over new, then click shortcut.
Now type into the box EXACTLY the following. You can change the bedroom map to whatever map you want.
For Windows 7/ Vista,
"C:\Program Files (x86)\Blockland\BlocklandLauncher.exe" -dedicated -map bedroom
For Windows XP,
"C:\Program Files\Blockland\BlocklandLauncher.exe" -dedicated -map bedroom