After reading this article I thought I was all set. But I am developing my applications in ColdFusion MX 7 and encountered the error below:
"The tag does not have an attribute called connectstring. The valid attribute(s) are name, datasource, dbtype, sql, username, password, maxrows, blockfactor, timeout, dbname, cachedafter, cachedwithin, result, debug."
Much to my dismay, I found that Macromedia added "connectionless" DSN's in CF 5, then took them away again in CFMX.
Further researching this, I found out that this is because ColdFusion MX 7 no longer interfaces directly through ODBC. Instead it uses JDBC as the data access layer.
I have yet to find a work around, So I will continue to setup my DSN references via the ColdFusion Administrator Interface.