From: Masaki Suketa <masaki.suketa@...>
Date: 2008-12-29T15:11:52+09:00
Subject: Re: win32ole and releasing COM objects

Farmer Schlutzenberg wrote:
> I'm using win32ole to automate use of Microsoft Office Document Imaging
> (MODI), on Windows Vista. There seems to be problems with getting MODI
> to release files that it works with. I.e., calling Close on the MODI
> object doesn't necessarily release the file to other processes
> (attempting to delete it gives me an Errno::EACCESS error). A web search
> shows that this is a common issue, and the main suggestion in other
> languages is to use
> 
> System.InteropServies.Marshal.ReleaseComObject(object)
> 
> for each object that needs to be released. Do we have access to this
> method in Ruby? Or does anyone know another way to deal with this?
> 

Try WIN32OLE.ole_free or WIN32OLE#ole_free.

   WIN32OLE.ole_free(object)
     or
   object.ole_free

FYI, Win32OLE automatically releases com object when the object
is GCed. And Win32OLE does not release com object until the object
is GCed (except WIN32OLE.ole_free, WIN32OLE#ole_free).

   Regards,
   Masaki Suketa