this program requires a missing windows component

Hello,
 
I have created a c# windows application in Visual Studio 2010. I build and tested it on 32-bit Win7 OS. Also I tested it on some other 32-bit Win7 OS. The result is application works perfectly.
 
But when I test it on Vista it gives me some problems like :
 
1) This program requires a missing windows component.
I am using a webbrowser control on this form.
 
2) ********* has stopped working.
I am using threading on this form
 

I am very frustrated to get the solution of it.
 
Please help me to get rid of these situation.
 
Awaiting your response.
 
Thanks and Regards
Kapil