default programs

I,m having a huge problem with my computer. i tried to open a file by double clicking on it and it didnt work so I right clicked and went into the OPEN WITH. there i clicked on internet explorer to open the file. Once I did that every program on my desktop switched its icon to the internet explorer icon. now i cant open internet explorer, skype, teamviewer, vuze or any other program on my desktop. every time i double click on a program a window pops up that has three options, open, sace and cancel. i clicked open ans save and it didnt work. now i dont know how to undo what i did.
can anyone PLEASE PLEASE help me !!!

Can you (not) Rt click on a file getting a menu wherein you can reverse what you did? Also, I would suggest doing a System Restore.

Drew

Welcome to the forum.
Chances are that the EXE fix from here File Association Fixes for Windows 7 - The Winhelponline Blog will fix you up.

If I have misunderstood and we're talking about links (shortcuts .lnk) files then use the LNK fix

Read the instructions on that page as to how to utilize the fixes once you have downloaded it or them.
Regards
Randy