Sage 300 UI Container Error Fix

Error: "Sage 300 ERP UI Container has stopped working" when printing reports to preview

When printing Sage 300 reports to preview, the following error may occur on servers newer than Windows 2008 R2 and workstations newer than Windows 7.

"Sage 300 UI Container has stopped working"

The most common causes of this error are the workstation or server not having .NET 3.5 enabled, the installation was not done with an administrator account, UAC turned off, or multiple versions of the Crystal Reports runtime engine.

Troubleshoot .NET 3.5

The Sage 300 Crystal runtime engine requires .NET 3.5 to be enabled which can be done by being logged onto the server or workstation as an administrator.

Windows 2012/2012 R2/2014
Roles and features wizard

Windows 8/8.1/10
Windows features

Note: The most recent Windows 10 update appears to be removing .NET 3.5 from workstations and thus may require turning back on the feature.

On Workstations upgraded to Windows 10, it has been observed that enabling .NET 3.5 may require opening CMD as admin and running the command:
Dism /online /enable-feature /featurename:NetFx3 /All /Source:"[location of Windows 10 Media]\sources\sxs"/LimitAccess

Troubleshoot Sage 300 InstallationNew call-to-action

Sage 300 should be installed using an account that has administrative access. During the installation, it is recommended that Anti-Virus software be turned off and that user account control settings be disabled.

Note that Windows 8 and Windows 10 require disabling user account control settings in the registry:

If the software is not properly installed, the UI container error may be due to certain components not being registered. Users can trouble shoot this first by running the program regacc.exe located in the sage300runtime folder.

If prompted that a4wcrinterop.dll was not registered, proceed with the following instructions to manually register a4wcrinterop.dll.

  1. Run CMD as administrator.
  2. Enter the command, C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm /register [sage300runtimefolder]\a4wcrinterop.dll.
    • [sage300runtimefolder] is the location of the Sage300 program files. (i.e. - C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm /register "C:\Sage\Sage 300 ERP\runtime\a4wcrinterop.dll")
    • The default location is “C:\Program files (x86)\Sage\Sage 300 ERP\runtime\” but will CMD will need to be updated to reflect the current location of the Sage300 installation.
  3. If registering aa4wcrinterop.dll fails, confirm that the crystal runtime engine has been properly installed by navigating to the location "C:\Program Files\SAP BusinessObjects\Crystal Reports for .NET Framework 4.0\Common\SAP BusinessObjects Enterprise XI 4.0\win32_x86" (for 32bit computers) or "C:\Program Files(x86)\SAP BusinessObjects\Crystal Reports for .NET Framework 4.0\Common\SAP BusinessObjects Enterprise XI 4.0\win32_x86" (for 64 bit computers).

Not being able to manually register a4wcrinterop.dll and/or missing Crystal runtime engine components could be an indication of an incomplete installation. It is then recommended to uninstall and reinstall System Manager as a local administrator.

See Also: How to Fix Sage 300 Posting Errors

Troubleshoot Crystal Runtime Engine

This error has also been observed when there are multiple versions of the Crystal runtime files. This may be a result of a different software application using a different Crystal runtime engine. The application using the different Crystal runtime engine would need to be uninstalled and installed on a different machine.

See Also:

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