Upgraded from 2007 to 2010, now getting a "MSCAL.OCX..missing” error

After upgrading from office 2007 to Office 2010 Plus when i am trying to run it then i am getting below error message:

Component 'MSCAL.OCX' or one of its dependencies not correctly registered; a file is missing or invalid.

Is there anything i can do to fix this??

I had the same problem
found the answer at:
Download the mscal_office2003.zip file and installed it.

Now it works fine.