Creating Word doc from form works in Notes 5.0.2 but not 5.0.11

We have a Microsoft Word document that is in quotation form on the Web, so that overseas sales can download it. The form is created in the Notes client. Once the sales manager approves the sales quote , we generate a Word document and put it in the richtext field. This action works in Notes R5.0.2. But in R5.0.11, the Notes client is not working. The system will display an "Import/Export not configure" error message. Any idea why this is happening? Here is the button action formula:

@PostedCommand([FileSave]);
@PostedCommand([EditDocument];"0");
FileName := "C:\temp\" + @Text(RefNo) + ".DOC"; 
@PostedCommand([FileExport]; 
"MicrosoftWord RTF"; FileName); 
@PostedCommand( [EditDocument] );
 @PostedCommand( [EditGotoField]; "attachfile" ); 
@PostedCommand
( [EditInsertFileAttachment] ; filename;"1"  )