There is a .net library for OO called AODL, but I've read it is not updated. However, if you have OO or Libre installed you should be able to access the cli namespaces with WB's CLR: Unfortunately, the bootstrap() method is problematic...
;Winbatch 2013 - CLR - basis for working with OpenOfice/LibreOffice
;
;
;Stan Littlefield August 11, 2013
;NOTE: Only basic version check for WB
;////////////////////////////////////////////////////////////////////////////////////////////////////////
If Version( )< '2013A'
Pause('Notice', 'Need 2013A or Newer Version of WinBatch')
Exit
EndIf
ObjectClrOption("use","cli_basetypes, Version=1.0.19.0, Culture=neutral, PublicKeyToken=ce2cb7e279207b9e")
ObjectClrOption("use","cli_cppuhelper, Version=1.0.22.0, Culture=neutral, PublicKeyToken=ce2cb7e279207b9e")
ObjectClrOption("use","cli_oootypes, Version=1.0.8.0, Culture=neutral, PublicKeyToken=ce2cb7e279207b9e")
ObjectClrOption("use","cli_ure, Version=1.0.22.0, Culture=neutral, PublicKeyToken=ce2cb7e279207b9e")
ObjectClrOption("use","cli_uretypes, Version=1.0.8.0, Culture=neutral, PublicKeyToken=ce2cb7e279207b9e")
oFactory = ObjectClrNew('unoidl.com.sun.star.uno.XComponentContext')
oDeskTop = ObjectClrNew('unoidl.com.sun.star.lang.XMultiComponentFactory')
oContext = ObjectClrNew('uno.util.Bootstrap')
oBootStrap = oContext.bootstrap() ;should error here
Exit