missing links in dynamic link library wlanapi.dll

When booting up my dell desktop I receive two error messages: The procedure entry point--aps Search Interface--and--aps Initialize could not be located in the dynamic link library wlanapi.daa.

Does anyone have any idea how to reconnect these links?  I am unable to connect to the internet from that computer.  It is loated upstairs and my wireless link is downstairs.  I just purchased a new N wireless router.  The Dell connected once, then never again.  I also purchased a wall plugged bridge to try,  Still no luck ( and no response to my plea for help from Netgear who made both the router & the bridge).

All suggestions would be appreciated.