MS Enchange OWA

I am running MS Exchange 5.5 with SP4 on NT 4.0 with SP6. Now i have the need to enable the OWA option in Enchange Server. However, when i try adding (installing)it, it give this error message
“The command lodctr ewsperf.ini fail, returning an error code of <32>” and
“An internal component has fail – MS Exchange Server Setup ID no:c103798a”

I have no idea what is giving or causing the problem. I have tried re-installing the SP4 and reinstalling the OWA but to no avail. Anyone out there can share a thought.

regards