https://communities.sas.com/t5/SAS-Programming/Class-not-registered-error-trying-to-connect-using-IOM-Local/m-p/622748#M183211 <P>Hi</P> <P>&nbsp;</P> <P>I have a C# app which makes a connection to a local library using the SAS IOM Data Provider.</P> <P>This has worked perfectly for many clients over many years.</P> <P>However, recently we have had two clients who receive "Class not registered" messages when the connection is attempted.</P> <P>The connection string is simply "Provider=sas.IOMProvider;Data Source=_LOCAL_"</P> <P>I know the provider is there because the code checks for it.</P> <P>In fact the client has three providers installed 9.20, 9.44 and 9.46.</P> <P>They also have full SAS 9.4 installed.</P> <P>&nbsp;</P> <P>I have 9.43 and 9.46 drivers and SAS 9.4 installed with no issues.</P> <P>Any suggestions please?</P> <P>&nbsp;</P> Thu, 06 Feb 2020 16:00:23 GMT keV 2020-02-06T16:00:23Z https://communities.sas.com/t5/SAS-Programming/Class-not-registered-error-trying-to-connect-using-IOM-Local/m-p/622748#M183211 <P>Hi</P> <P>&nbsp;</P> <P>I have a C# app which makes a connection to a local library using the SAS IOM Data Provider.</P> <P>This has worked perfectly for many clients over many years.</P> <P>However, recently we have had two clients who receive "Class not registered" messages when the connection is attempted.</P> <P>The connection string is simply "Provider=sas.IOMProvider;Data Source=_LOCAL_"</P> <P>I know the provider is there because the code checks for it.</P> <P>In fact the client has three providers installed 9.20, 9.44 and 9.46.</P> <P>They also have full SAS 9.4 installed.</P> <P>&nbsp;</P> <P>I have 9.43 and 9.46 drivers and SAS 9.4 installed with no issues.</P> <P>Any suggestions please?</P> <P>&nbsp;</P> Thu, 06 Feb 2020 16:00:23 GMT https://communities.sas.com/t5/SAS-Programming/Class-not-registered-error-trying-to-connect-using-IOM-Local/m-p/622748#M183211 keV 2020-02-06T16:00:23Z