Problem with Direct Oracle Acces

I have installed the Direct Oracle Access components and when I use
them, such
an error eppears : 'Initialization error.Could not load
C:\ORAWIN95\BIN\oci.dll.'
I've checked the library and it exists in the proper directory.This is
probably not
problem with system Windows 98 or Oracle because I've reinstalled them.
I don't know what else I can do.
Please help me.

Adam