Many modems with conexant chipsets are really annoying to install - they are quite temperamental. Once you run the self-extracting zip file, run the install new modem wizard and point it to the directory where the inf files were extracted. Now just choose the model number which corresponds to your modem. If it needs more information, you may have to point it back to the directory again to install devices such as "Wave modem". Windows will install the appropriate files to the appropriate places once this is done. No guarantees on this one guys - hope it helps though.