Object Linking and Embedding (OLE) is a proprietary interface to Microsoft applications. Most notably the Microsoft Office suite.
Object Linking and Embedding is an API provided by Microsoft to allow for control operations with Microsoft Applications.
Perl can make use of this API using the Win32::OLE
module.
Ruby also has a WIN32OLE class which does much the same.
However the primary scripting language is VBA, and Microsoft supply a variety of examples via MSDN
May be synonymous with the OLE tag, although anyone specifying Win32::OLE (or WIN32OLE) is probably specifically using Ruby or Perl.
Ref: Wikipedia:OLE