You should not have dabbled with System Restore on this one. Windows
AntiSpyware may prompt you to remove some peer-to-peer (P2P) file sharing
programs. If you choose to remove such a program, Microsoft Windows
AntiSpyware deletes the entire contents of the Program Files directory that
relates to the P2P program. Because some P2P programs store downloaded files
in a default directory under Program Files, this might remove all files
downloaded through the file-sharing program. For example, KaZaA stores .exe
and .dll files at C:\Program Files\Kazaa. Downloaded files are stored at
C:\Program Files\Kazaa\My Shared Folder. If you use Windows AntiSpyware to
remove KaZaA, all files and folders under C:\Program Files\Kazaa are
removed. If you have installed any P2P file sharing programs, we recommend
that you make a backup copy of your downloaded files before running Windows
AntiSpyware.
If you have accidentally quarantined a program as spyware you can remove it
from quarantine and restore it to its original state. To restore a program:
1. A list of all items in your quarantine is displayed. Select the item you
would like to un-quarantine and when the items appear in the right details
pane, click Un-quarantine Threat. This action restores the item to its
original state before it was quarantined.
2. To un-quarantine multiple items in the quarantine, select each item and
click Un-quarantine all checked Threats at the bottom of the screen.
3. After you un-quarantine an item, restart your computer to make sure the
restored application runs.
