I have modifed DTC configuration. checked allow remote client Gave full rights to windows\temp directory installed all the service packs for sql and windows I logged in as administrator while configuring the biztalk 2004 server i got the following error.(clean build) Following is the error transcript. Please help me to solve the following problem [7:00:41 AM Error BtsCfg] c:\depot4000\jupiter\source\private\mozart\source\setup\btscfg\btswmi.cpp(266): FAILED hr = c0c025b3 [7:00:41 AM Error BtsCfg] Failed to deploy BizTalk system assembly "C:\Program Files\Microsoft BizTalk Server 2004\Microsoft.BizTalk.GlobalPropertySchemas.dll". [Microsoft.BizTalk.Deployment.DeploymentException] [System.Data.SqlClient.SqlException] Failed to load msxmlsql.dll. [System.Data.SqlClient.SqlException] Failed to load msxmlsql.dll. [Microsoft.BizTalk.Deployment.DeploymentException] [System.Data.SqlClient.SqlException] Failed to load msxmlsql.dll. [System.Data.SqlClient.SqlException] Failed to load msxmlsql.dll. [7:00:41 AM Error BtsCfg] c:\depot4000\jupiter\source\private\mozart\source\setup\btscfg\btscfg.cpp(762): FAILED hr = c0c025b3 [7:00:41 AM Info BtsCfg] Leaving function: CBtsCfg::ConfigureFeature [7:00:43 AM Info ConfigFramework] Waiting for configuration thread to complete. [7:00:54 AM Info ConfigFramework] Waiting for configuration thread to complete. [7:01:05 AM Info ConfigFramework] Waiting for configuration thread to complete. [7:01:06 AM Info ConfigFramework] Showing MessageBox with text: Failed to deploy BizTalk system assembly "C:\Program Files\Microsoft BizTalk Server 2004\Microsoft.BizTalk.GlobalPropertySchemas.dll". [Microsoft.BizTalk.Deployment.DeploymentException] [System.Data.SqlClient.SqlException] Failed to load msxmlsql.dll. [System.Data.SqlClient.SqlException] Failed to load msxmlsql.dll. [Microsoft.BizTalk.Deployment.DeploymentException] [System.Data.SqlClient.SqlException] Failed to load msxmlsql.dll. [System.Data.SqlClient.SqlException] Failed to load msxmlsql.dll. Return Code: 2 [7:01:06 AM Error ConfigFramework] ********************************************** [7:01:06 AM Error ConfigFramework] *** Configuration failed - Rolling back... *** [7:01:06 AM Error ConfigFramework] ********************************************** [7:01:06 AM Error ConfigFramework] Configuration failed - rolling back... [7:01:06 AM Info ConfigFramework] Retrieved cached IConfig object for feature: WMI ProgID: MSEBiz.BtsCfg [7:01:06 AM Warning ConfigFramework] Rolling back feature: