How to fix Script Error in Web File Properties: length' is null or not an object?

If you are getting a weired script error “length is null or not an object” while saving the documents from Microsoft Office word, excel etc. then you are not alone:):)

This behaviour occurs without any obvious reason and has been identified as a bug by Microsoft. After wasting a lot of time, I was able to found the hotfix released from Microsoft at

http://support.microsoft.com/default.aspx?scid=kb;EN-US;950292

Please install this hotfix at your own risk and make sure you have taken the backup of your servers before applying this hotfix.

Please post comments and experiences for this bug.