Please help! How to share internet from Windows to Mac

Hi,
Pleeeeeease help me!!!
I have to use a wimax USB modem for my internet and the modem doesn't have any mac driver. I must run it on my windows guest OS in Parallels. I want to share the connection in windows so that I can use it in mac OS.
I've checked all the connection type in Network 1 settings, but none of them work. I've tested all methods found on forums, but still useless. Has anybody done this before? Please give some hints and steps of how I can do it. I really need it, thanks thanks!

 

The missing link is that you have to start Internet Sharing on Windows, configure Parallels to Bridged Mode, and set OS X network settings accordingly (this will likely be more complex due to DHCP).

 

Thanks for your reply

I'm aware of the steps you mentioned, but I cannot get result. What I'm looking is a more practical and detailed steps. I've tried different ways!