Classic ASP on IIS8 calls Oracle SP returns BLANK

We went from

32 bit WS 2003\IIS 6 server to a new 64 bit WS 2012\IIS 8 server

The classic asp web pages worked on IIS6.

The web page calls an Oracle Stored Procedure which sends back

an HTML string, which gets displayed in the browser.

I have changed the code on IIS for ASP to 65001, then to 1252. Still sends back a BLANK.

I should get a value. I can send a value to the SP. However I cannot get a return value.

SET DataConn8 = Server.CreateObject("ADODB.Connection")<br>
   DataConn8.cursorlocation = 3   '' adUseClient<br>
   DataConn8.ConnectionTimeout = 15
   DataConn8.CommandTimeout = 30
   DataConn8.Open "my_oracle_dsn"
   Set cmd2 = Server.CreateObject("ADODB.Command")
   cmd2.ActiveConnection = DataConn8
   cmd2.CommandType = adCmdStoredProc
   cmd2.CommandText = "Outilities.Test_Timenoww5"
	      set o2Parm = cmd2.CreateParameter()
              o2Parm.Name = "mreturnvalue"
              o2Parm.type = adVarChar
              o2Parm.Direction = adParamOutput
              o2Parm.Size=50
              cmd2.Parameters.append o2Parm
              cmd2.Execute 
      return3Val = cmd2.Parameters(0)
    Response.write "bb_"&return3Val&"<br>"

Above is the classic asp script.  Below is the oracle stored procedure.

PROCEDURE TEST_TIMENOWW5  
( 
  co_Output_tx out varchar2
) AS
   v_sql_tx   nvarchar2(400);
   my_code           number;
   my_errm           varchar2(32767);
BEGIN
    co_Output_tx :='cdefgh';
EXCEPTION
     WHEN OTHERS THEN
      my_code := SQLCODE;
      my_errm := SQLERRM;
      raise_application_error(-20000,
         'Error code of' || my_code || ': ' || to_char(my_errm));
END TEST_TIMENOWW5;

This is the oracle version:

Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
PL/SQL Release 11.2.0.3.0 - Production
"CORE 11.2.0.3.0 Production"
TNS for Linux: Version 11.2.0.3.0 - Production
NLSRTL Version 11.2.0.3.0 - Production

 Any suggestions?

TIA

shall42