It has been quite sometime now since AS was sent packing. My site is now at 7.2.2 and thought that it might be time to complete the removal. Seemed to be okay on my test site. Deleted the module and files from the production site and found that I had to reinstall the DLL. 

 Now there are entries in the Events Viewer coming from the Forum (AF) and the Scheduler. Here's one.

System.Data.SqlClient.SqlException (0x80131904): Invalid object name 'dbo.ald_activesocial_Settings'.
   at System.Data.SqlClient.SqlConnection. (SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
   at System.Data.SqlClient.SqlInternalConnection. (SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
   at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
   at System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
   at System.Data.SqlClient.SqlDataReader.TryConsumeMetaData()
   at System.Data.SqlClient.SqlDataReader.get_MetaData()
   at System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString)
   at System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, SqlDataReader ds)
   at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean asyncWrite)
   at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method)
   at System.Data.SqlClient.SqlCommand.ExecuteScalar()
   at Microsoft.ApplicationBlocks.Data.SqlHelper.ExecuteScalar(SqlConnection connection, CommandType commandType, String commandText, SqlParameter[] commandParameters)
   at Microsoft.ApplicationBlocks.Data.SqlHelper.ExecuteScalar(String connectionString, CommandType commandType, String commandText, SqlParameter[] commandParameters)
   at DotNetNuke.Modules.ActiveForums.Social.GetMasterForumGroup(Int32 PortalId, Int32 CurrentTabId)
ClientConnectionId:3add2279-bdaa-4366-aafe-d8bea6d65b08

Question is how to be rid of AS completely. It is like AS is a bad smell that just won't die. I'd like to remove old modules and code that could be the cause of some issues that just keep appearing.

Thanks for your reply Sibabrat. You are correct that the module didn't uninstall correctly. Found files remaining and 5 tables in the DB remaining. However no modules remain on any pages. I remove the remaining files and dropped the tables, looked in the Schedule Table and found this entry "Active.Modules.Social.Tasks.FeedTask,Active.Modules.Social" that had not uninstalled. Deleted the entry which fixed that issue. There are more with reference to Active Social.

AssemblyVersion:7.2.2

PortalID:0

PortalName:RV Supertramp - Australian RV Lifestyle Community

UserID:3777

UserName:Shelldweller

ActiveTabID:250

ActiveTabName:General RV Forums

RawURL:/Forums/GeneralRVForums/tabid/250/aff/7/Default.aspx

AbsoluteURL:/Default.aspx

AbsoluteURLReferrer:http://rvsupertramp.com.au/Forums/GeneralRVForums.aspx

UserAgent:Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_4) AppleWebKit/537.77.4 (KHTML, like Gecko) Version/7.0.5 Safari/537.77.4

DefaultDataProvider:DotNetNuke.Data.SqlDataProvider, DotNetNuke

ExceptionGUID:4a2a1ea2-dbac-4c7a-aa9f-48d5eaefc636

InnerException:Invalid object name 'dbo.ald_activesocial_Settings'.

FileName:

FileLineNumber:0

FileColumnNumber:0

Method:System.Data.SqlClient.SqlConnection.

StackTrace:

Message:

System.Data.SqlClient.SqlException (0x80131904): Invalid object name 'dbo.ald_activesocial_Settings'.
   at System.Data.SqlClient.SqlConnection. (SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
   at System.Data.SqlClient.SqlInternalConnection. (SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
   at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
   at System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
   at System.Data.SqlClient.SqlDataReader.TryConsumeMetaData()
   at System.Data.SqlClient.SqlDataReader.get_MetaData()
   at System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString)
   at System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, SqlDataReader ds)
   at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean asyncWrite)
   at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method)
   at System.Data.SqlClient.SqlCommand.ExecuteScalar()
   at Microsoft.ApplicationBlocks.Data.SqlHelper.ExecuteScalar(SqlConnection connection, CommandType commandType, String commandText, SqlParameter[] commandParameters)
   at Microsoft.ApplicationBlocks.Data.SqlHelper.ExecuteScalar(String connectionString, CommandType commandType, String commandText, SqlParameter[] commandParameters)
   at DotNetNuke.Modules.ActiveForums.Social.GetMasterForumGroup(Int32 PortalId, Int32 CurrentTabId)
ClientConnectionId:d29fbfac-460b-4fcc-a276-ceaf45786a72