MySQL ODBC driver (32 bit) linked server, architecture mismatch

Hello,
I am trying to create a linked server in SQL 2012 Management Studio with a MySQL external server. I have used the 32bit ODBC driver as instructed by the developer, following this rule:
To manage a data source that connects to a 32-bit driver under 64-bit platform, use c:\windows\sysWOW64\odbcad32.exe.
My connection is fine using the ODBC connector, but when I try to create the linked server I get an architecture mismatch error: The specified DSN contains an architecture mismatch between the Driver and Application Error 7303.
Can someone help?
Best regards
Kostas
Kostas Backas-Systemgraph Technologies

Hello,
What's the bit verison of the SQL Server ?
Based on your description, you create a DSN connect to MySQL database with 32 bit MySQL ODBC driver under 32bit ODBC Administrator tool (sysWOW64\odbcad32.exe).
When you create linked server on SQL Server instance, it will use 64 bit Microsoft OLE DB Provider for ODBC Drivers if the bit version of SQL Server is 64 bit. That may cause the error you received. In that case, please download 64bit MySQL ODBC driver and
create a DSN with 64 bit ODBC Administrator tool.
Reference: http://dev.mysql.com/downloads/connector/odbc/
If I have any misunderstanding, please correct me.
Regards,
Fanny Liu
If you have any feedback on our support, please click here.
Fanny Liu
TechNet Community Support

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Thanks,
Lydia Zhang
If you have any feedback on our support, please click
here.
Lydia Zhang
TechNet Community Support

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(2) Then, I created an ODBC DSN on a Windows platform. This DSN connects to a MySQL server. I created another report with Crystal Reports using this DSN. The report can show the data within Crystal Reports. 
(3) Then, I published the second report to CRS, but when I try to browse it, I always get such a message: Failed to open the connection. 
I have configured the ODBC for CRS on the Linux server and I think the configuration is correct. This is how I do that: I edited the /opt/crystalreportsserver_2008_v1/bobje/odbc.ini file. In the file I added a data source called ods_telstar. Following is the content of the file: 
[ODBC Data Sources] <
CRSQLServerWP=DataDirect 5.3 SQLServer Wire Protocol Driver 
CRSybaseWP=DataDirect 5.3 Sybase Wire Protocol Driver 
CRText=DataDirect 5.3 Text Driver 
%SYBASEDSN%=DataDirect 5.3 Sybase Wire Protocol Driver 
ods_telstar = MySQL 
 
... 
 
[ods_telstar] 
Description = ODS on telstar 
Trace = Off 
TraceFile = stderr 
Driver = /opt/crystalreportsserver_2008_v1/bobje/enterprise120/linux_x86/odbc/lib/libmyodbc5.so 
SERVER = xxx 
USER = xxx 
PASSWORD = xxx 
PORT = 3306 
DATABASE = ods 
 
In the middle I removed some data source definitions that are by default in the file. Note that I use "xxx" to replace the server name, user, and password. Such information is for internal use and I'm sure the original information is correct. The MySQL ODBC driver file has been put in the correct location. Correct access permissions has been assigned to the file. 
I've tried to restart the CRS server, but still the report using ODBC DSN cannot be viewed. 
The reason that we want to user ODBC DSN is that we may have many reports to publish. When we design the reports, we specify that they get data through an ODBC DSN such as ods_telstar. If we configure the same DSN on CRS, then we don't need manually modify each report's configuration after we publish them. If these reports are directly connecting to MySQL, then we have to manually modify each one's database configuration after we publish them. 
I've no idea what's wrong with all the setup. Any suggestions and comments are appreciated!

MySQL ODBC driver (32 bit) linked server, architecture mismatch

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