How do you reinstall age of mythology

[Xephorce77]

I deleted age of mythology 5 months ago.I start missing the game and try installing it again.The product key has been used in this computer.It said its invalid. How do you install it!?I couldn't find it in the start menu!I cant even find the recycle bin!!!!!I somehow found it using a finder thing.I pressed it and it said"This application has failed to start because RockallDLL.dll was not found.Re-installing the application may fix this problem."That leads to the product key problem.Please help!!!!!!! Thank you..

 

[DM186]

I am having sort a the same problem but mine is with Age of Empires III. That dll file is one of the 4 that states not in my system. Anyway my problem is that it hates win 7.

But here is a free program that will take all of the old program out so you can reinstall your game and should not have the problem with you CD Key. At least I hope so. It is worth a try and good luck to you.

http://download.cnet.com/Revo-Uninstaller/3000-2096_4-10687648.html