I, too, have recently seen a problem with the reporting function of ThreatWork Alliance within Lavasoft's free version of Ad-Aware. Operating System is Windows Vista 64 Home Premium, Service Pack 2. Machine is an HP dv9000 class lap-top with 4mb memory. The details returned by the error reporting log are as follows: Problem signature: Problem Event Name: APPCRASH Application Name: ThreatWork.exe Application Version: 126.96.36.199 Application Timestamp: 4c5c128e Fault Module Name: xapauthenticodesip.dll Fault Module Version: 4.0.50524.0 Fault Module Timestamp: 4bf9f4b3 Exception Code: c0000005 Exception Offset: 00002d66 OS Version: 6.0.6002.2.2.0.768.3 Locale ID: 1033 Additional Information 1: fd00 Additional Information 2: ea6f5fe8924aaa756324d57f87834160 Additional Information 3: fd00 Additional Information 4: ea6f5fe8924aaa756324d57f87834160 Threat Work is enabled in the "allowed" screen on the Windows Vista firewall. I do hope this will help you narrow down the cause(s) of this problem.