Registering MSCOMCTL.OCX on Windows 7 (x64) to run the FLAC Front End

This content is 12 years old. I don't routinely update old blog posts as they are only intended to represent a view at a particular point in time. Please be warned that the information here may be out of date.

I’ve mentioned before that iTunes mangled my MP3 library and then a multiple disk failure on my ReadyNAS took it away completely and, eventually, I will re-rip the hundreds of CDs that (thankfully) I still have in my loft…

In the meantime, I’ve been researching (aka asking followers on Twitter) what’s the best way to re-rip my music and the general consensus was to rip as Free Lossless Audio Codec (FLAC) and then convert to MP3 as required:

@ Haven't we done this before? Encode to FLAC and use dBpoweramp Music Converter to change to anything else
Garry Martin

A couple of weeks ago, I downloaded FLAC from Sourceforge but the installer gave an error message, complaining that it failed to register MSCOMCTL.OCX (on my Windows 7 x64) system.

Neil C. Obremski describes the problem in his 2008 blog post and the problem file is a Visual Basic 6.0 control which, not surprisingly, Microsoft no longer ships with Windows. Whilst there are unofficial downloads available, Microsoft also makes the Visual Basic 6.0 Common Controls (MSCOMCTL.OCX and COMCTL32.OCX) available as free downloads but they are contained in a .EXE file that didn’t want to play ball either.

No problem, 7-Zip opened the .EXE and I successfully extracted the file I wanted, copying it to C:\Windows\SysWOW64 on my machine.

Following this, I dropped into a command prompt (running as an administrator) and typed:

regsvr32 mscomctl.ocx

With the OLE control extension (.OCX) registered, I was able to run the FLAC front end (although I actually used dBpoweramp instead… it’s tremendously powerful and the CD ripper setup guide helped me to get going).

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