Oracle Database Express Edition (XE)

I'v downloaded and installed ODB 10c Express Edition, bu can't get running nothing
Can't connect with sqlplus and htmldb also not working.
Windows XP Proffessional SP2

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SQL> connect "SYS"/"&&sysPassword" as SYSDBA
ERROR:
ORA-12705: Cannot access NLS data files or invalid environment specified


SQL> set echo on
SQL> //create or replace directory DB_BACKUPS as 'C:\oraclexe\app\oracle\flash_recovery_area';
SP2-0640: Not connected
SQL> begin
2 dbms_xdb.sethttpport('8080');
3 dbms_xdb.setftpport('0');
4 end;
5 /
SP2-0640: Not connected
SQL> create spfile='C:\oraclexe\app\oracle\product\10.2.0\server\dbs/spfileXE.ora' FROM pfile='C:\oraclexe\app\oracle\product\10.2.0\server\config\scripts\init.ora';
SP2-0640: Not connected
SQL> shutdown immediate;
ORA-01012: not logged on
SQL> connect "SYS"/"&&sysPassword" as SYSDBA
ERROR:
ORA-12705: Cannot access NLS data files or invalid environment specified


SQL> startup ;
ORA-01078: failure in processing system parameters
ORA-01565: error in identifying file 'C:\oraclexe\app\oracle\product\10.2.0\server\dbs/spfileXE.ora'
ORA-27041: unable to open file
OSD-04002: unable to open file
O/S-Error: (OS 2) The system cannot find the file specified.
SQL> select 'utl_recomp_begin: ' || to_char(sysdate, 'HH:MI:SS') from dual;
SP2-0640: Not connected
SQL> execute utl_recomp.recomp_serial();
SP2-0640: Not connected
SP2-0641: "EXECUTE" requires connection to server
SQL> select 'utl_recomp_end: ' || to_char(sysdate, 'HH:MI:SS') from dual;
SP2-0640: Not connected
SQL> alter user hr password expire account lock;
SP2-0640: Not connected
SQL> alter user ctxsys password expire account lock;
SP2-0640: Not connected
SQL> alter user outln password expire account lock;
SP2-0640: Not connected
SQL> spool off;