I am having Vista Basic installed on my computer. Everytime at startup a popup apeears saying " Windows has blocked a startup program from running, to unblock the program click here", and it is 'Windows host process "Rundll32.exe" '. It all started after I tried to view a vedio clip from a DVD due to which the computer got hanged and I had to restart it to work again. But now I have noticed whenever I start windows it shows the message that windows has blocked Rundll32. I tried to resolve it by setting permissions in windows defender under startup programs for Rundll32 but of no use.Now everytime when I have to open an application which depends on Rundll32 I am asked for permission to run 'Rundll32' by 'User account Control' window.Can it be due to registry cleaning which I had done a few days back? Here are details about the application.
[ File Name: rundll32.exe
Display Name: Microsoft Windows host process (Rundll32)
Description: Windows host process (Rundll32)
Publisher: Microsoft Corporation
Digitally Signed By: Microsoft Windows Verification PCA
File Type: Application
Startup Value: rundll32.exe C:\Windows\system32\sshnas.dll,NvTaskbarInit
File Path: C:\Windows\system32\rundll32.exe
File Size: 44544
File Version: 6.0.6000.16386 (vista_rtm.061101-2205)
Date Installed: 02-11-2006 14:18:33
Startup Type: Registry: Current User
Ships with Operating System: No
SpyNet Voting: Not applicable ]
Can anybody please help me to get rid of this problem?