SQL Server - Apparently wrong driver class specified for URL

Olá, hoje tive o seguinte erro ao iniciar o JBoss num ambiente SQL Server 2000:

15:45:18,348 WARN [JBossManagedConnectionPool] Throwable while attempting to get a new connection: null: org.jboss.resource.JBossResourceException: Could not create connection; - nested throwable: (org.jboss.resource.JBossResourceException: Apparently wrong driver class specified for URL: class: com.microsoft.sqlserver.jdbc.SQLServerDriver, url: jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=mydatabase)

O problema era a URL de conexão com o banco no meu arquivo ds.xml, tirei o :microsoft

jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=mydatabase
jdbc:sqlserver://localhost:1433;DatabaseName=mydatabase

Vaaleu!
Adriano Schmidt