I cant open .zip files

Hi

I got a .zip and .eml extension files from another yahoo user through email. I could not open them. I opened those files in the past but now after one year I'm unable to open them. Those files are very important to me. How to remove the virus which is detected by Yahoo Anti-virus.

Help Reg.

Thank You.

Please download the current version of HijackThis from HERE

• Double click and run the installer.
  
• It will install to C:\Program Files\Trend Micro\HijackThis\hijackthis.exe
  
• After installing, you should get the user agreement, press accept and Hijack This will run.
  
• Select Do a system scan and save a log file. This will open a notepad file of everything Hijack This found, copy and paste it back here.
  

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 8:55:58 AM, on 7/16/2009
Platform: Windows XP SP2 (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\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Common Files\Symantec Shared\ccSetMgr.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Common Files\Real\Update_OB\realsched.exe
C:\Program Files\Common Files\Symantec Shared\ccApp.exe
C:\PROGRA~1\SYMANT~1\VPTray.exe
C:\Program Files\Messenger\msmsgs.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Common Files\LightScribe\LightScribeControlPanel.exe
C:\Program Files\Common Files\Ahead\Lib\NMBgMonitor.exe
C:\Documents and Settings\Compaq\Local Settings\Application Data\Google\Update\GoogleUpdate.exe

Hello, the log was cut off, please run another scan and post all the contents of the log.