I started with the last solution you had and then went to the top. Ask Leo was the only one that worked for my situation. All the other programs I tried said 'file not valid' when I tried to delete my file. Here are the options I tried before I finally got rid of my file.
First I tried to right click but I could not get a Delete nor a Rename to pop up.
Then I tried to drop and drag to the recycle bin but absolutely nothing happened there.
That’s when I started to download programs and the only one out of 4 that worked was this one- http://www.purgeie.com/delinv/index.htm
The third one in Lord Of The Rings List about Ask Leo worked for me.

Thank you very very much.