Error Running Crystal Reports runtime engine for .NET FRamework 4 (32- bit)

[Former Member]

We had run the Error Running Crystal Reports runtime engine for .NET Framework 4 (32- bit) version 13.04.705 on a Windows 208 machine for a long time. We are now upgrading to 2019. We do not want to recompile our applications, but we get this error:System.Runtime.InteropServices.COMException: The document has not been opened. We have installed several versions of Microsoft Visual C++ . Is there a solution for this that does NOT require recompiling?

[former_member11696 · Accepted solution]

OK, so 13.0.4000.0 is the minimum framework version, being 4.x

On the WIKI page there is a KBA for side by side, add the config file to your EXE folder so it redirects the .NET runtime to use an older version.

I highly recommend recompiling so all of the new security fixes are used and any changes to the code in the backend are resolved.

The issue you may run into if the old app is still using older Framework is the backward compatibility may cause problems.

Don

[Former Member · Accepted solution]

Thank you. I appreciate the help.