ERROR LSNRCTL

Dear Gurus,

The error is comming while installation of SAP data base.

The proccess runing

"PERFORMANCE ORACLE NETWORK CONFIGURATION"

error

MOS-01012 PROBLEM: 'D:\oracle\ora81/bin/lsnrctl stop' returned with '128' which is not a defined as a success code.

ERROR 2008-07-17 01:10:19

FJS-00012 Error when executing script.

After this I run CMD - lsnrctl - start, But the message show

Some thing is missing in oranl8.dll

Pl. give me the solution.

Thanks

Manoj Kumar