C# Service with Recursive Search writing filenames to specific file.

I'm looking for a C# (.NET) Windows Service which - Is configurable through a BrowseForFolder Dialog adding as many folders as I want into a Listbox/ListView. - Each Folder needs to be scanned recursively. - Filenames of those folders need to be written to a file (whose location and name can be specified inside Options) in the following matter: filename,fullpathwithfilename<crlf> - Option to skip certain files (also per Listbox/Listview add/remove) - This recursive scan can be set on a schedule fixed schedule with exemptions (like not on Sundays or after 5pm or before 6 am) All Source code needs to be delivered along with executable at end of contract. GUI not important.