ORA-01991: invalid password file

Oracle Version: 10gr1

OS: Windows 2003 Server

In development db i was getting below error message during database startup in mount stage.

SQL> startup
ORACLE instance started.
Total System Global Area 171966464 bytes
Fixed Size 787988 bytes
Variable Size 145488364 bytes
Database Buffers 25165824 bytes
Redo Buffers 524288 bytes
ORA-01991: invalid password file
'D:\oracle\product\10.1.0\Db_1\DATABASE\PWDspipr.ORA'
above error occured after i refreshed development db from production db.
Clause: I was restore production db hot backup (user mananged) to development db and re-create oracle services and forget to create password file. so everything is new but the password file is old one. that is why i was getting ABOVE error during startup database.
Solution: Re-create the password file.
1. Stop oracle services
D:\oracle\product\10.1.0\Db_1\BIN>net stop oracleserviceSPIPR
The OracleServiceSPIPR service is stopping.......
The OracleServiceSPIPR service was stopped successfully.
2. Re-create password file through ORAPWD utility
D:\oracle\product\10.1.0\Db_1\BIN>orapwd file=D:\oracle\product\10.1.0\Db_1\database\pwdSPIPR.ORA password=oracle entries=5 force=Y
NOTE: FORCE=Y will re-create password file and replace any existing passwordfile.
3. start oracle database services
D:\oracle\product\10.1.0\Db_1\BIN>net stART oracleserviceSPIPR
The OracleServiceSPIPR service is starting......
The OracleServiceSPIPR service was started successfully.
D:\oracle\product\10.1.0\Db_1\BIN>sqlplus / as sysdba
SQL*Plus: Release 10.1.0.2.0 - Production on Mon Aug 18 19:11:19 2008
Copyright (c) 1982, 2004, Oracle. All rights reserved.
Connected to:
Oracle Database 10g Enterprise Edition Release 10.1.0.2.0 - Production
With the Partitioning, OLAP and Data Mining options
SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup
ORACLE instance started.
[output cut]
Database mounted.
Database opened.