Searched for this driver A LOT, Modem is Compaq Spare S8114, supposedly is made by a CIS Technology Company under Model M1-5614PM3 but i downloaded several drivers under that description and none of them worked. Then tried under RLDL56DPF and R6785-68 (Chip's Numbers) and neither worked out for me. Finally, Identified the modem as being made by Rockwell, a HCF type, with subvendor compaq. This is a generic driver found at conexant.com worked for me to recognize modem although modem was damaged and unable to open port. Hope it works for you.