PL/SQL Developer connection to database and the problem of Chinese garbled in Oracle database

Today, the second configuration of PL/SQL developer, said that the egg hurts, yesterday because moved a thing and then inexplicably can not connect the database, always show a variety of
Error, I moved the thing is because the Chinese will show garbled, (because I am using 32-bit PL/SQL developer to connect 64-bit Orcale, so refer to the online tutorial in the Tim
Add an environment variable name is Nls_lang, and the value is simplified Chinese_china. ZHS16GBK, and then changes the value of the name under the registry to this
Kind of, and then I log on again to show a variety of errors, not even to change back, but also try to re-create a new database, finally reinstall Oracle resolved, and because I uninstalled
Not clean finally still through the reload system and then reload the database, really around a good big a bend, and then installed after the configuration, once again appear the same error, then no language,
This time I decided to try a different approach, and then I tried to delete the path to the Oci.dll library and rerun the following script once:
@echo off
Set Path=d:\app\xiaxiaosheng\product\instantclient_10_2
Set Oracle_home=d:\app\xiaxiaosheng\product\instantclient_10_2
Set Tns_admin=d:\app\xiaxiaosheng\product\instantclient_10_2
Set Nls_lang=simplified Chinese_china. Zhs16gbk
Start Plsqldev.exe

The result will be. Finally no longer have to toss.

Then it is about the Chinese garbled problem, in fact, I read the tutorial about the text of this script in the tutorial set the value of this Nls_lang is set when the American_america. Al32utf8 this,

But the value inside the server registry is simplified Chinese_china. ZHS16GBK, the code inconsistency caused the Chinese display garbled.

PL/SQL Developer connection to database and the problem of Chinese garbled in Oracle database