ISAM file opening error

Hi,

I am trying to open an ISAM file with isopen call.
But I am getting error with iserror set to 111.


I tried to check 111 error code ...


111 ENOREC
Action: No record could be found that contained the requested value
in the specified position.


I think this error should error if we are trying to find a record and
record is not there.
But how can this error be possible while opening a file (ISAM)???


Thanks

.