per favore non riesco a capire quale sia il programma in esecuzione. . . mi controllate il file log di hijackthis

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 8.44.09, on 07/12/2009
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v8.00 (8.00.6001.18702)
Boot mode: Normal

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\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\Programmi\Trend Micro\Internet Security\UfSeAgnt.exe
C:\WINDOWS\Mixer.exe
C:\Programmi\Hewlett-Packard\hp business inkjet 1200 series\Toolbox\HPWNTBX.exe
C:\Programmi\Hewlett-Packard\HP Share-to-Web\hpgs2wnd.exe
C:\Programmi\Microsoft Office\Office12\GrooveMonitor.exe
C:\Programmi\ATI Technologies\ATI.ACE\Core-Static\MOM.EXE
C:\Programmi\Java\jre6\bin\jusched.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Programmi\Trend Micro\Internet Security\TMAS_OE\TMAS_OEMon.exe
C:\Programmi\File comuni\Ahead\Lib\NMBgMonitor.exe
C:\Documents and Settings\MARCO\Impostazioni locali\Dati applicazioni\Google\Update\1.2.183.13\GoogleCrashHandler.exe
C:\Programmi\Trend Micro\BM\TMBMSRV.exe
C:\Programmi\Hewlett-Packard\HP Share-to-Web\hpgs2wnf.exe
C:\Programmi\Java\jre6\bin\jqs.exe
C:\Programmi\File comuni\LightScribe\LSSrvc.exe
C:\WINDOWS\system32\IoctlSvc.exe
C:\Programmi\Trend Micro\TrendSecure\SecurityActivityDashboard\tmarsvc.exe
C:\Programmi\Trend Micro\Internet Security\SfCtlCom.exe
C:\Programmi\Alcohol Soft\Alcohol 120\StarWind\StarWindService.exe
C:\WINDOWS\system32\svchost.exe
C:\Programmi\Trend Micro\Internet Security\TmPfw.exe
C:\Programmi\Trend Micro\Internet Security\TmProxy.exe
C:\Programmi\File comuni\Ahead\Lib\NMIndexingService.exe
C:\Programmi\File comuni\Ahead\Lib\NMIndexStoreSvr.exe
C:\WINDOWS\system32\wbem\wmiapsrv.exe
C:\Programmi\ATI Technologies\ATI.ACE\Core-Static\ccc.exe
C:\Programmi\Trend Micro\TrendSecure\TISProToolbar\ProToolbarUpdate.exe
C:\Programmi\Trend Micro\TrendSecure\TSCFCommander.exe
C:\Programmi\Trend Micro\TrendSecure\TISProToolbar\PlatformDependent\ProToolbarComm.exe
C:\Programmi\Trend Micro\TrendSecure\TSCFPlatformCOMSvr.exe
C:\Programmi\Trend Micro\HijackThis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.it/webhp?rls=ig
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://go.microsoft.com/fwlink/?LinkId=69157
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Programmi\Adobe\Acrobat 6.0\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Programmi\File comuni\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: Trend Micro Toolbar BHO - {43C6D902-A1C5-45c9-91F6-FD9E90337E18} - C:\Programmi\Trend Micro\TrendSecure\TISProToolbar\TSToolbar.dll
O2 - BHO: (no name) - {5C255C8A-E604-49b4-9D64-90988571CECB} - (no file)
O2 - BHO: Groove GFS Browser Helper - {72853161-30C5-4D22-B7F9-0BBC1D38A37E} - C:\Programmi\Microsoft Office\Office12\GrooveShellExtensions.dll
O2 - BHO: Guida per l'accesso a Windows Live - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Programmi\File comuni\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: AcroIEToolbarHelper Class - {AE7CD045-E861-484f-8273-0445EE161910} - C:\Programmi\Adobe\Acrobat 6.0\Acrobat\AcroIEFavClient.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Programmi\Java\jre6\bin\jp2ssv.dll
O2 - BHO: JQSIEStartDetectorImpl - {E7E6F031-17CE-4C07-BC86-EABFE594F69C} - C:\Programmi\Java\jre6\lib\deploy\jqs\ie\jqs_plugin.dll
O3 - Toolbar: Barra degli strumenti Trend Micro - {CCAC5586-44D7-4c43-B64A-F042461A97D2} - C:\Programmi\Trend Micro\TrendSecure\TISProToolbar\TSToolbar.dll
O3 - Toolbar: Adobe PDF - {47833539-D0C5-4125-9FA8-0819E2EAAC93} - C:\Programmi\Adobe\Acrobat 6.0\Acrobat\AcroIEFavClient.dll
O4 - HKLM\..\Run: [UfSeAgnt.exe] "C:\Programmi\Trend Micro\Internet Security\UfSeAgnt.exe"
O4 - HKLM\..\Run: [C-Media Mixer] Mixer.exe /startup
O4 - HKLM\..\Run: [StartCCC] "C:\Programmi\ATI Technologies\ATI.ACE\Core-Static\CLIStart.exe"
O4 - HKLM\..\Run: [HPWNTOOLBOX] C:\Programmi\Hewlett-Packard\hp business inkjet 1200 series\Toolbox\HPWNTBX.exe "-i"
O4 - HKLM\..\Run: [Share-to-Web Namespace Daemon] C:\Programmi\Hewlett-Packard\HP Share-to-Web\hpgs2wnd.exe
O4 - HKLM\..\Run: [GrooveMonitor] "C:\Programmi\Microsoft Office\Office12\GrooveMonitor.exe"
O4 - HKLM\..\Run: [NeroFilterCheck] C:\Programmi\File comuni\Ahead\Lib\NeroCheck.exe
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Programmi\Adobe\Reader 9.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [Adobe ARM] "C:\Programmi\File comuni\Adobe\ARM\1.0\AdobeARM.exe"
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Programmi\Java\jre6\bin\jusched.exe"
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [OE] C:\Programmi\Trend Micro\Internet Security\TMAS_OE\TMAS_OEMon.exe
O4 - HKCU\..\Run: [BgMonitor_{79662E04-7C6C-4d9f-84C7-88D8A56B10AA}] "C:\Programmi\File comuni\Ahead\Lib\NMBgMonitor.exe"
O4 - HKCU\..\Run: [Google Update] "C:\Documents and Settings\MARCO\Impostazioni locali\Dati applicazioni\Google\Update\GoogleUpdate.exe" /c
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SERVIZIO LOCALE')
O4 - HKUS\S-1-5-19\..\Run: [OE] C:\Programmi\Trend Micro\Internet Security\TMAS_OE\TMAS_OEMon.exe (User 'SERVIZIO LOCALE')
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SERVIZIO DI RETE')
O4 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'Default user')
O8 - Extra context menu item: E&sporta in Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office12\EXCEL.EXE/3000
O9 - Extra button: Invia a OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~2\Office12\ONBttnIE.dll
O9 - Extra 'Tools' menuitem: I&nvia a OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~2\Office12\ONBttnIE.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\Office12\REFIEBAR.DLL
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
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: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - http://update.microsoft.com/microsoftupdate/v6/V5Controls/en/x86/client/muweb_site.cab?1242642362281
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://fpdownload2.macromedia.com/get/shockwave/cabs/flash/swflash.cab
O18 - Protocol: grooveLocalGWS - {88FED34C-F0CA-4636-A375-3CB6248B04CD} - C:\Programmi\Microsoft Office\Office12\GrooveSystemServices.dll
O18 - Protocol: tmtb - {04EAF3FB-4BAC-4B5A-A37D-A1CF210A5A42} - C:\Programmi\Trend Micro\TrendSecure\TISProToolbar\TSToolbar.dll
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: ATI Smart - Unknown owner - C:\WINDOWS\system32\ati2sgag.exe
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Sun Microsystems, Inc. - C:\Programmi\Java\jre6\bin\jqs.exe
O23 - Service: LightScribeService Direct Disc Labeling Service (LightScribeService) - Hewlett-Packard Company - C:\Programmi\File comuni\LightScribe\LSSrvc.exe
O23 - Service: NBService - Nero AG - C:\Programmi\Nero\Nero 7\Nero BackItUp\NBService.exe
O23 - Service: NMIndexingService - Nero AG - C:\Programmi\File comuni\Ahead\Lib\NMIndexingService.exe
O23 - Service: PLFlash DeviceIoControl Service - Prolific Technology Inc. - C:\WINDOWS\system32\IoctlSvc.exe
O23 - Service: Security Activity Dashboard Service - Unknown owner - C:\Programmi\Trend Micro\TrendSecure\SecurityActivityDashboard\tmarsvc.exe
O23 - Service: ServiceLayer - Nokia. - C:\Programmi\PC Connectivity Solution\ServiceLayer.exe
O23 - Service: Componente Central Control Trend Micro (SfCtlCom) - Trend Micro Inc. - C:\Programmi\Trend Micro\Internet Security\SfCtlCom.exe
O23 - Service: StarWind iSCSI Service (StarWindService) - Rocket Division Software - C:\Programmi\Alcohol Soft\Alcohol 120\StarWind\StarWindService.exe
O23 - Service: Trend Micro Unauthorized Change Prevention Service (TMBMServer) - Trend Micro Inc. - C:\Programmi\Trend Micro\BM\TMBMSRV.exe
O23 - Service: Trend Micro Personal Firewall (TmPfw) - Trend Micro Inc. - C:\Programmi\Trend Micro\Internet Security\TmPfw.exe
O23 - Service: Trend Micro Proxy Service (TmProxy) - Trend Micro Inc. - C:\Programmi\Trend Micro\Internet Security\TmProxy.exe

--
End of file - 9535 bytes

da task manager non risulta nessuna applicazione aperta!
ringrazio e porgo i miei saluti

La tua domanda é assurda, senza una spiegazione, di programmi in esecuzione ce ne sono tantissimi quando avvii il PC, che problema hai???????

E' normale che ci sia, se usi "Cambia utente" per passare ad altro utente: il precedente utente NON verrà disconnesso e resterà attivo (quindi: programma in esecuzione).
Usa invece "Disconnetti", come del resto è meglio per risprmiare RAM, e non ci sarà più il "Programma in esecuzione".

Troppo buono, darmi del "sig." e poi anche il maiuscolo ...
Può darsi che in certi casi esca "sessione aperta", non saprei dirti quando, ma è sicuro che possa uscire anche "1 programma in esecuzione" cambiando l'utente, perchè a me succede: ma se non mi credi, guarda questo link dove parla proprio di questo:
http://forum.wininizio.it/index.php?showtopic=28974
Parla anche di programmi in esecuzione ma ti assicuro che anche a me succede senza NIENTE (apparentemente) operante.