Hey Beginner, if you goto the following forum
http://computing.net/windowsxp/wwwboard/wwwboard.html
and you do a search for wingdings it will pull up a thread that has what you need to do. Basically you need to go under the display properties and go to the apperance tab which should be the 4th tab from the left. Goto the advanced tab which should be bottom right of the window. Once there click on the item drop down and go through all item in there, assign font to each of them that you can. This should clear up half of the things in there, enough to finish the fix.
You will then need to check under control panel - Fonts - to see if your fonts are there, probably not. You will need to find the fonts and copy them into this directory, mine were under a fonts dirctory under program files. Once you get the fonts to stay in the control panel fonts directory you can reboot and everything should come back, it took me 4 tries to get the fonts to actually stay there. Unfortunately whatever happened also messed up my Internet explorer by deleting the version information, as well as killing the keyboard driver, I couldn't fix the keyboard without IE which kept thinking it was lower than 5.5. I eventually had to give up and re-install XP. I've got IE working again but still having a problem with the keyboard typing the wrong letters. Not sure what's up with that.
Good luck