I ran into a situation recently where I experienced some difficulty getting Crystal RAS 2008 to work properly when it was installed on a Windows Server 2008 R2 (x64). The first issue appeared when we installed the ODBC drivers but they did not appear in the ODBC Data Source Administrator. It turns out that in 64 bit versions of Windows there are actually two ODBC Data Source Administrators, one for 64 bit drivers and one for 32 bit drivers, however only the 64 bit Administrator is available in the Control Panel/Administrative Tools and the drivers we were using were 32 bit. To access the 32 bit administrator, we needed to manually find and run the following file: C:\Windows\SysWOW64\odbcad32.exe . Now we could see the ODBC drivers we installed.
Once we figured out why the ODBC drivers we not showing up in the ODBC Data Source Administrator and worked through that, our next issue appeared. We were able to create System DSN’s (using the Oracle driver) and verify that they were set up correctly using the “Test Connection” feature, but for some reason every time we ran a report we would get an error message: Failed to open the connection. Details: [Database Vendor Code: 12154]. This error message translated into ORA-12154: TNS could not resolve the connect identifier specified.
After some extensive research, it turns out that this was a fairly common issue for people using 32 bit ODBC drivers on a 64 bit Windows OS. I actually confirmed the same error message (ORA-12154) by installing Crystal Designer on the server and running a report directly from Crystal using the same ODBC connection (thereby bypassing the RAS server). As it turns out, the parentheses in the default file location, C:\Program Files (x86), cause problems with the ODBC drivers. All we had to do to fix the problem was install RAS in a directory that did not contain parentheses – I put it in C:\CrystalReports. Finally after much aggravation, RAS was working.