Provider not installed properly & at times Connection not open

Question

Hi developers,
I am almost very new to Macros VBA. I did much R&D to fetch data from Oracle database to excel sheet. I don't have any oracle software in my machine nor any drivers related to oracle. I request someone to provide me exact oracle  required drivers
link to fetch the data. I am running Windows 7 64 bit OS & excel 2010 32 bit. 
I am asking proper required drivers again in the question because, I installed 64 bit 10g Release 2 ODAC for Windows Itanium.
http://www.oracle.com/technetwork/database/windows/downloads/index-090165.html
Now, my question is, when I run the below script it throws Provider may not be installed properly or connection not open sometimes. I am confused totally on getting the data from oracle database. I don't know what is TNSNAMES.ORA file also & its location.
Some body please help me, I urge, in completing this fetching task from oracle database.
Sub Button1_Click()
Dim Conn As New ADODB.Connection
Dim RS As New ADODB.Recordset
Dim Cmd As New ADODB.Command
Dim sqlText As String
Dim Row As Long
Dim Findex As Long
Dim Data As Worksheet
Dim X As Long
Dim UID As String
Dim PWD As String
Dim Server As String
Dim strCon As String
Application.Calculation = xlCalculationManual
UID = "myUsername" 
PWD = "myPassword" 
Server = "myServerName" 'This comes from your TNSNames.ora file
Set Data = Sheets("Sheet2") 
Data.Select
Range("A:F").ClearContents 'Change A:F to the range you expect data to return to
Conn.Open "PROVIDER=MSDAORA.Oracle;DATA SOURCE=myServerName;Database=myDatabaseName;UID=myUsername;PWD=myPassword;"
Cmd.ActiveConnection = Conn
Cmd.CommandType = adCmdText
' Put your query next
sqlText = " select * from Oracle_Table_Name "
Cmd.CommandText = sqlText
Set RS = Cmd.Execute
For X = 0 To 17 
Data.Cells(1, X + 1) = RS.Fields(X).Name
Next
Do While Not RS.EOF
Row = Row + 1
For Findex = 0 To RS.Fields.Count - 1
Data.Cells(Row + 1, Findex + 1) = RS.Fields(Findex).Value
Next Findex
RS.MoveNext
Loop
Application.Calculation = xlCalculationAutomatic
Application.Calculate
End Sub
I have few cases as below:
1. When Provider name is changed to "PROVIDER=MSDAORA.Oracle" ---> it throws error as
Connection not Open.
2. When Provider name is changed to "Driver={Microsoft ODBC Driver for Oracle}" ---> it throws error as
[Microsoft] [ODBC Driver Manager] Data Source Name Not Found & no default driver specified.
3. When Provider name is changed to "Provider=OraOLEDE.Oracle" ---> it throws error as
Provider cannot be found. It may not be properly installed.
I request to please help me from beginning to start this process. I would be very thankful to you. I am struck. Please help me. 
sammy

Answer 1

Hi;
I have applied the note.
But the system tells me Runtime error! R6034. An application has made an attempt to load the C runtime library incorrectly.
And then again Provider for SQLDMO is not installed properly.
I have installed vcredist_x64.exe ande vcredist_x86.exe. I have installed R3dllinst too.
Could you please advise me again?
Best regards
Noyan