This is really weird. I have uninstalled and installed the Firebird client 22.214.171.124 and the DDEXProvider 126.96.36.199. I have also used the nuget to install firebird into the solution. If I try to edit my existing connection string in the Settings I get an error "Unable to find the Requested .Net Framework Data Provider. It may not be installed." If I attempt to add a connection to the server explorer I can get the add connection form but I cannot fill in the required information. The Firebird Data Source is listed next to the change box. If I start to type in the Data Source text box the form closes. I can launch the project and it will work. I just cannot add or edit anything in any dataset created earlier. Has anyone experienced this and what steps resolved it.