One IE process kills all IE processes - vb.net

Question

I'm developing a service in VB.net. The problem is if more than 1 IE windows are running, whenever i end a iexplorer process it doesn't close the corresponding IE window. i.e. if 4 windows are running i try to end 3 processes(That arrived after first process) one by one none of them closes but when i end that particular process(That arrived first) that is somehow holding all processes all Internet Explorers close down.
What i'm trying to do is i want commandline args of IE processes and i get args of first IE but after that i get this:
"C:\Program Files (x86)\Internet Explorer\iexplore.exe" "http://ksnap.bpweb.com/webtop/drl/versionLabel/CURRENT"
Thats what i want but when second IE process arrives i get this:
"C:\Program Files (x86)\Internet Explorer\iexplore.exe" SCODEF:424 CREDAT:79874"
and for all next arriving IE processes i get args :i.e. SCODEF:xxxx CREDAT:xxxx (xxxx represent digits)

Answer 1

I don't think you should be doing this by killing processes. You should be use internet explorer automation.
In c#:
using SHDocVw;
using mshtml;
private static IEnumerable<InternetExplorer> GetInternetExplorers()
{
ShellWindows shellWindows = new ShellWindowsClass();
List<InternetExplorer> allExplorers = shellWindows.Cast<InternetExplorer>().ToList();
IEnumerable<InternetExplorer> internetExplorers = allExplorers.Where( ie => Path.GetFileNameWithoutExtension( ie.FullName ).ToLower() == "iexplore" );
return internetExplorers;
}
References:
MSHTML - Microsoft HTML Object Library
Interop.SHDocVw.dll - Microsoft Internet Controls
Look into this a bit more, you should be able to find and close open tabs.