Corrupt Wireless Network Wizard

I’m running Win XP Home. I was so frustrated I reinstalled Windows. Took all day for the OS to update the files. Now when I click on the Wireless Network Setup Wizard I get an error message something like the following.

Run .Dll

wzcdlg.dll is corrupt
missing entry

I’ve deleted the wzcdlg.dll file from the c:\windows\system32 folder.
Then copied a new version in that folder.

No good,I keep getting the same error message.