Directory.Delete close program without Extension

Question

I have a little problem. I did a program (WinForms C#) which copy files from disk to removable media.

This is my process in loop:

• Source file are *.exe (sfx archive)
• Unzipping *.exe with 7z.exe via ProcessInfo (Something else didnt work)
• Finding *.zip file from extracted *.exe and File.Copy to removable media
• Delete folder created by 7z Process (Process is killed)
• Program close and delete himself (Its not a joke)

Structure of unzipped *.exe

• Folder
  • Folder
    • File.zip
    • Some junk as .txt or .doc

My code:

foreach(string[] dir in listView1.SelectedItems)
{
 if(Directory.Exists(Path.Combine(path_to_source, dir))
 {
   Directory.Delete(Path.Combine(path_to_source, dir), true);
 }
} 

The question is: Why program close and delete himself when Directory.Delete begin.

Answer 1

Trendmicro antivirus is the problem.