ho scaricato mdac e ho provato ad installarlo.
mi da questo errore durante l'installazione:
MDAC 2.8 RTM non è compatibile con questa versione di Windows. Tutte le sue funzionalità fanno parte di Windows.

ho provato anche con mdac SP1 che si trova in fondo alla pagina da te indicata e mi dice:
installazione non supportata in questo sistema operativo..

il so è win xp sp2 ed è tenuto aggiornato con windows update?
quel che mi preoccupa è che dice che il sistema operativo non supporta installazione..
che posso fare?
consigli?
Grazie ciao!

ciao..
ho scaricato hijack e questo è il log:

Logfile of HijackThis v1.99.1
Scan saved at 12.18.25, on 19/05/2006
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)

Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\Programmi\File comuni\Symantec Shared\ccSetMgr.exe
C:\WINDOWS\Explorer.EXE
C:\Programmi\File comuni\Symantec Shared\ccEvtMgr.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\SOUNDMAN.EXE
C:\Programmi\Java\jre1.5.0_06\bin\jusched.exe
C:\Programmi\File comuni\Symantec Shared\ccApp.exe
C:\PROGRA~1\SYMANT~2\VPTray.exe
C:\Programmi\Messenger\msmsgs.exe
C:\WINDOWS\system32\sistray.exe
C:\Programmi\Symantec AntiVirus\DefWatch.exe
C:\Programmi\F-Secure Anti-Virus\fswsclds.exe
C:\Programmi\Symantec AntiVirus\SavRoam.exe
C:\Programmi\IBM\Client Access\Emulator\pcsws.exe
C:\Programmi\IBM\Client Access\Emulator\PCSCM.EXE
C:\Programmi\Symantec AntiVirus\Rtvscan.exe
C:\PROGRA~1\IBM\CLIENT~1\cwblmsrv.exe
C:\Programmi\IBM\Client Access\Emulator\pcsws.exe
C:\Programmi\IBM\Client Access\Emulator\pcsws.exe
C:\Programmi\IBM\Client Access\Emulator\pcsws.exe
C:\Programmi\Internet Explorer\IEXPLORE.EXE
C:\Programmi\Internet Explorer\IEXPLORE.EXE
C:\Documents and Settings\utente\Documenti\HijackThis.exe

R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = localhost
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Programmi\Adobe\Acrobat 6.0\Reader\ActiveX\AcroIEHelper.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Programmi\Java\jre1.5.0_06\bin\ssv.dll
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [SiSUSBRG] C:\WINDOWS\SiSUSBrg.exe
O4 - HKLM\..\Run: [SiSPower] Rundll32.exe SiSPower.dll,ModeAgent
O4 - HKLM\..\Run: [SunJavaUpdateSched] C:\Programmi\Java\jre1.5.0_06\bin\jusched.exe
O4 - HKLM\..\Run: [Client Access Service] "C:\Programmi\IBM\Client Access\CwbSvStr.Exe"
O4 - HKLM\..\Run: [Client Access Help Update] "C:\Programmi\IBM\Client Access\cwbinhlp.exe"
O4 - HKLM\..\Run: [Client Access Check Version] "C:\Programmi\IBM\Client Access\cwbckver.exe" LOGIN
O4 - HKLM\..\Run: [ccApp] "C:\Programmi\File comuni\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [vptray] C:\PROGRA~1\SYMANT~2\VPTray.exe
O4 - HKCU\..\Run: [MSMSGS] "C:\Programmi\Messenger\msmsgs.exe" /background
O4 - Global Startup: Microsoft Office.lnk = C:\Programmi\Microsoft Office\Office\OSA9.EXE
O4 - Global Startup: Utility Tray.lnk = C:\WINDOWS\system32\sistray.exe
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Programmi\Java\jre1.5.0_06\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Programmi\Java\jre1.5.0_06\bin\ssv.dll
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Programmi\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Programmi\Messenger\msmsgs.exe
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://go.microsoft.com/fwlink/?linkid=39204
O17 - HKLM\System\CCS\Services\Tcpip\..\{AB8268BD-7DFB-4B5D-B1BD-685C67C49317}: NameServer = 151.99.125.2,151.99.125.3
O20 - Winlogon Notify: NavLogon - C:\WINDOWS\system32\NavLogon.dll
O23 - Service: Symantec Event Manager (ccEvtMgr) - Symantec Corporation - C:\Programmi\File comuni\Symantec Shared\ccEvtMgr.exe
O23 - Service: Symantec Password Validation (ccPwdSvc) - Symantec Corporation - C:\Programmi\File comuni\Symantec Shared\ccPwdSvc.exe
O23 - Service: Symantec Settings Manager (ccSetMgr) - Symantec Corporation - C:\Programmi\File comuni\Symantec Shared\ccSetMgr.exe
O23 - Service: Comando remoto di Client Access Express (Cwbrxd) - IBM Corporation - C:\WINDOWS\CWBRXD.EXE
O23 - Service: Symantec AntiVirus Definition Watcher (DefWatch) - Symantec Corporation - C:\Programmi\Symantec AntiVirus\DefWatch.exe
O23 - Service: F-Secure Windows Security Center Legacy Detection Service (Fswsclds) - F-Secure Corporation - C:\Programmi\F-Secure Anti-Virus\fswsclds.exe
O23 - Service: SAVRoam (SavRoam) - symantec - C:\Programmi\Symantec AntiVirus\SavRoam.exe
O23 - Service: Symantec Network Drivers Service (SNDSrvc) - Symantec Corporation - C:\Programmi\File comuni\Symantec Shared\SNDSrvc.exe
O23 - Service: Symantec AntiVirus - Symantec Corporation - C:\Programmi\Symantec AntiVirus\Rtvscan.exe

grazie