Unexpected Behavior

[JohnFredMeyer]

I am confused at behavior i see when saving files. Lets say I want to create a zip of just picture files.
Example
Folder: C:\Temp
Pictures: C:\Temp\pic1.jpg
C:\Temp\pic2.jpg
C:\Temp\pic3.jpg

Now code:

                        var fileNames = Directory
                            .GetFiles(@"C:\Temp\");

                        using (var zipFile = new ZipFile())
                        {
                            zipFile.AddFiles(fileNames);
                            zipFile.Save(streamToReturn);
                        }

This works and produces zip but when I open archive it starts with TEMP folder even though I don't want folder. I just want zip file with three pictures. I have tried saving to file, stream then to file etc and cannot seem to get that behavior. Any ideas?