Audio & Video Software forum

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Class not registered!

by VigneshBalasubramanian / January 19, 2010 1:43 PM PST

I installed KM Player on my Windows 7 Ultimate system. When I double click a video file and play it in KM player there is no problem but when I double click on KM Player then the message "Class not registered" comes. When I close the program there is an option to check for solutions in Windows 7, I click on it and it says that flash player needs to be installed. But I have already installed it.
I am sure the installer is not corrupted as I installed it on my Windows XP SP3 system(I use multi-booting) without any problem.
What should I do? Thanks in advance.

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I'm having difficulties
by MarkFlax Forum moderator / January 20, 2010 7:13 PM PST
In reply to: Class not registered!

finding anything out about this KM Player.

I can see that it is developed by a South Korean company;

But what I can't find are any 'front end' web pages for it. If I goto all I get is a forum listing, presumably in South Korean. So I can't check "System Requirements". I note you are using Windows 7, (32 bit or 64 bit? That could make a difference), but all I could find about system requirements is CNET's's page;

No mention of Windows 7 there.

If you can find anything yourself, all well and good. You may also want to register for their forums and post your problem there. Other than that, all I could suggest is to use Adobe's own Flash Uninstaller from;
to uninstall Flash, reboot the computer afterwards, then re-visit Adobe to download their latest Flash Player.

You may say that you already have the latest Flash Player, but we often see members here with Flash problems and a complete and proper uninstall then re-install often helps.

Sorry I can't be more positive.


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Since I am an Indian
by VigneshBalasubramanian / January 20, 2010 8:33 PM PST

even I can't read that language.
I have 32 bit edition of windows. I tried uninstalling flash player, then downloading and installing version 10. Still the problem is persisting . Now I have found out that GOM player also is having the same problem.
Furthermore I downloaded these after reading so I feel these must be compatible with Windows 7.

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I can't say.
by MarkFlax Forum moderator / January 21, 2010 3:55 AM PST
In reply to: Since I am an Indian

That Windows Starter Kit web page you linked to isn't dated, so that doesn't help me decide whether these players are compatible with Win 7.

In addition, the KMPlayer in that page links back to the page I mentioned in my first post, and again, I see no mention of Windows 7 in the specifications list.

I didn't see the GOM player in that page, and don't know anything about it.

It seems you will have to do the investigating yourself about these two players, and I think the KMPlayer forums are a good place to start. There are English versions of their forums.


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At last I
by VigneshBalasubramanian / January 21, 2010 6:09 PM PST
In reply to: I can't say.

found out that it was due to some conflict between flash player for IE and for Firefox. When the former is installed there would be no problems whereas these two players do not recogonize firefox. So I uninstalled the flash player, downloaded the flash player for IE and installed. Then I went to Youtube with firefox where it said to install a missing plugin(flash player) and I allowed firefox to automatically install the flash player.
Now there is no problem with these two players. Thanks for your time and help.

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