Having only one LAN point in your room is sometimes annoying especially since NUS on-campus housing doesnt have Wi-Fi available. To solve this issue you can obviously buy a wireless router and set a wireless server provided you are fine with spending on one. If you dont want to spend, and dont want the LAN point in your room to be barred since you have bridged your network cards trying to setup an ad hoc wireless server (NUS does block your LAN point if it detects that your Network cards are bridged as it considers it to be a Security threat. I have had my LAN point blocked from using the Internet for a fortnight.)... here is the solution.
Step 1: Go to any of these links - http://www.hardwaresecrets.com/article/418 (or) http://www.microsoft.com/windowsxp/using/networking/expert/bowman_02april08.mspx
Step 2: Follow the instructions there carefully. The first link has better screen shots and is much more organised than the Microsoft link.
Step 3: Becareful of your Security. Try to make sure no one breaches your connection.
NOTE: 1) An ad hoc wireless server was successfully created and tested in DTU not NUS network. If any you manage to accomplish it in NUS network, please drop a comment on the results.
2) So far I have managed to get one friend of mine access Internet using the ad hoc wirelss server I set up. Couldnt find more people to test it out as most of them were asleep by the time this was accomplised.
Any comments are welcome.