From: Lou Vanek <vanek@...>
Date: 2006-01-05T21:42:06+09:00
Subject: Re: win32ole and mci.mmcontrol failure

 > irb
irb(main):001:0> require 'win32ole'
=> true
irb(main):002:0> sound = WIN32OLE.new("MCI.MMControl")
=> #<WIN32OLE:0x250a230>
irb(main):003:0>
 > irb -v
irb 0.9.5(05/04/13)
 > ruby -v
ruby 1.8.4 (2005-12-26) [i386-cygwin]


do you have OLE/COM Object Viewer installed (I think it comes with Visual C++).
if not, you can get it at,
http://www.microsoft.com/windows2000/techinfo/reskit/tools/existing/oleview-o.asp
http://www.microsoft.com/downloads/details.aspx?FamilyID=9d467a69-57ff-4ae7-96ee-b18c4790cffd&displaylang=en

Is "Microsoft MCI Control" listed under "Controls" or "Automation Objects" in the
OLE/COM Object Viewer?

do you have mci32.ocx installed in System32 dir?
is mci32.ocx in your path?
is MCI.MMControl in your registry?


Daniel Berger wrote:

> Hi all,
> 
> Windows XP, SP2
> Ruby 1.8.2 and 1.8.4
> 
> Why does this fail?
> 
> irb(main):001:0> require "win32ole"
> => true
> irb(main):002:0> sound = WIN32OLE.new("MCI.MMControl")
> WIN32OLERuntimeError: unknown OLE server: `MCI.MMControl'
>     HRESULT error code:0x800401f3
>       Invalid class string
>         from (irb):2:in `initialize'
>         from (irb):2
> 
> Thanks,
> 
> Dan