Oracle 11g TNSPING 实用程序存在以下问题：全新的 11g 客户端安装，ORACLE_HOME 设置正确，TNS_ADMIN 也设置，msb 文件在所需位置可用，调用 TNSPING 的用户可以读取。连接数据库工作正常，可以使用sqlplus进行连接。然而，TNSPING 失败了。见附件日志：
Microsoft Windows [Version 6.1.7600]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
C:\Users\USERNAME>set ORACLE_HOME=C:\Work\Software\Oracle\product\11.2.0\client_1
C:\Users\USERNAME>set TNS_ADMIN=%ORACLE_HOME%\network\admin
C:\Users\USERNAME>set NLS_LANG=ENGLISH_POLAND.EE8MSWIN1250
C:\Users\USERNAME>dir %TNS_ADMIN%\tnsnames.ora
Volume in drive C is XXX
Volume Serial Number is YYY
Directory of C:\Work\Software\Oracle\product\11.2.0\client_1\network\admin
2013-03-19 12:26 358 tnsnames.ora
1 File(s) 358 bytes
0 Dir(s) 59 082 616 832 bytes free
C:\Users\USERNAME>dir %ORACLE_HOME%\network\mesg\tns*.msb
Volume in drive C is XXX
Volume Serial Number is YYY
Directory of C:\Work\Software\Oracle\product\11.2.0\client_1\network\mesg
2010-03-31 07:01 53 248 tnspl.msb
2010-03-31 07:01 47 104 tnsus.msb
2 File(s) 100 352 bytes
0 Dir(s) 59 082 616 832 bytes free
C:\Users\USERNAME>sqlplus <USER>/<PASSWORD>@<DATABASE>
SQL*Plus: Release 11.2.0.1.0 Production on Tue Mar 19 14:36:34 2013
Copyright (c) 1982, 2010, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Release 11.2.0.2.0 - 64bit Production
SQL> exit
Disconnected from Oracle Database 11g Release 11.2.0.2.0 - 64bit Production
C:\Users\USERNAME>tnsping <DATABASE>
TNS Ping Utility for 32-bit Windows: Version 11.2.0.1.0 - Production on 19-MAR-2013 14:37:52
Copyright (c) 1997, 2010, Oracle. All rights reserved.
Message 3511 not found; No message file for product=NETWORK, facility=TNSMessage 3512 not found; No message file for product=NETWORK, facility=TNSMessage 3513 not found; No message file for product=NETWORK, facility=TNSMessage 3509 not found; No message file for product=NETWORK, facility=TNS
请注意：出于安全考虑，我不得不替换所有用户凭据、数据库名称等。
你能帮我解决问题吗？我已经阅读了与 TNSPING 故障相关的所有其他 StackExchange 主题，但是每个解决方案（设置 ORACLE_HOME、重新安装、确保注册表指向正确的主目录、检查 msb 文件）都让我失望了……
提前致谢！