Composer LitInteropSWCOM failed to load plug-in : File not found

I can load most files created in SolidWorks and viewed with Composer.

When I try to open one particularly large file I receive the following message

Composer

Solidworks Converter report:

C:\Users\....\BigFile.SLDASM

LitInteropSWCOM failed to load plug-in : File not found

LitInteropSWCOM : OpenDoc failed : C:\Users\....\BigFile.SLDASM

The message is confusing as it does not explain whether there is a problem with the file I am opening or with LitInteropSWCOM.

C:\Program Files\SolidWorks Corp\SolidWorks Composer\Bin exists in C:\Program Files\SolidWorks Corp\SolidWorks Composer\Bin.

Thanks in advance

Peter

SolidworksComposer