Reminder: How to use Window's Shell32 to do basic decompression (unzipping).

Add the shell32.dll reference found in C:\Windows\System32

Excerpt from my code:

Shell32.Shell sc = new Shell32.Shell();
Shell32.Folder SrcFlder = sc.NameSpace(file.FullName);
Shell32.Folder DestFlder = sc.NameSpace(args[2]);
Shell32.FolderItems items = SrcFlder.Items();
DestFlder.CopyHere(items, 20);

where:
file.FullName is a string representing the full path to the *.zip file. (Actually a FileInfo type)
arg[2] is another string representing the destination folder.