According to HijackThis (v1.98.2) it’s a BHO without a name {2afba397-d964-4056-a9df-060a93ffa503} that was installed in C:\Windows\System32\iacime.dll.
Symantec Anti-Virus identifies it as:
Scan type: Realtime Protection Scan Event: Virus Found! Virus name: Downloader File: C:\WINDOWS\system32\iacime.dll Location: C:\WINDOWS\system32 Computer: JOE-LAPTOP User: Joe Action taken: Clean failed : Quarantine failed : Access denied Date found: Thu Jul 27 08:54:43 2006