Pl Sql Developer Oracle Client Not Properly Installed Oraclehomekey

I am new to Oracle, I am starting to work on my first project. I have installed Oracle Client ora11 and pl/sql. I have set tns names files under network/admin(tns names file is ok, I copied it from a colleague). Whwn I start pl/sql I got: Initialization Error, SQL*NET not properly installed. I already searched a lor for this issue. The solution is to set the home directory and oci.dll on preferences. I did it already and nothing changed.

I verified on registry, the home directory is set to C: app myname product 11.2.0 client_1. The oracle name is OraClient11g_home2. I tried to put these two values and did not work. I have the same directory also on c: oracle. And also tried to put this path, no results. If anyone have any idea what else could be the problem, I will be thankfull.

Initialization error SQL*Net not properly installed OracleHomeKey: SOFTWARE ORACLE OracleHomeDir: ++++++ + OK + ++++++ Note, I dont think that my plsql installation cd is corrupt since I was = able to install plsql developer on other machines without any problems. Can anyone please help me out with this problem. 64-bit Oracle client on a 64-bit machine. And then loaded on PL / SQL Developer, but connect oracle old reported this error: Initialization Error SQL * Net not properly installed OracleHomeKey: OracleHomeDir: See the online statement to Tools - Preferences-oracle connection to configure the location of the Oracle home.