|Unfortunately your choice of Adobe Shockwave to open Office documents in the first place was incorrect, which probably started all your problems. Shockwave is a "player" which is used for flash games and so forth.|
I don't think you download Office 2007 off the net unless it was an illegal version (which could do anything, including infecting your computer). You definitely have to pay for MS Office and it doesn't come cheap. Possibly you downloaded the Office 2007 "Viewer", in which case the file names I gave you in #1 might not apply. Only you can tell us what you really have onboard. Give us a link to whatever you downloaded and we'll check it out.
As for 7-zip I expect you "Ran" the file rather than "Saving" it. The best thing to do with any file download is to first create a spare folder. During install you should have a chance to tell it where you want to install itself. In which case send it to the folder you created and do not let it select the desktop (which is why you had all those icons - its files). Uninstall it from Control Panel then install it again the way I suggested above.
Similarly, with the various fixes. It is always best to avoid running them from the web.
Far better to put each of them into a separate pre-made empty folder and run them from there rather than the desktop. In some cases you might need to reboot afterwards before they do their tricks.
I don't think any of this is too difficult to do but rather tricky to properly explain online remotely, as we cannot see exactly what is happening and have to make assumptions.
Please come back and let us know how you got on.