Ad-aware keeps identifying problem files. After deleting these files and rebooting, whenever I go back onto the Internet, the files reappear. Log file is attached. The file that worries me most is saaphook.dll

Do you need additional information from me? If so,let me know. Thank you.

Logfile was not attached. And we prefer you copy and post, rather than attach.
\
Download *Hijack This!*
http://www.computercops.biz/downloads-file-328.html
http://www.tomcoyote.org/hjt/

Unzip to a folder other than your Desktop or the Temp folder. Then, doubleclick HijackThis.exe, and hit "Scan".

When the scan is finished, the "Scan" button will change into a "Save Log" button.
Press that and copy & paste its contents here.

Most of what it lists will be harmless or even essential, don't fix anything yet. Someone will be along to tell you what steps to take after you post the contents of the scan results.