C#: a mechanism to generate regular files
<p>following regular files (date_time.zip) would be generated at 15-min interval in ASP.NET site with Timer.</p>

<p>1027_0100.zip, 1027_011*.zip, 1027_0130.zip, ...</p>

<p>My question is I need a mechanism to restore files which are somehow missed within 3 days, like 1026_0000.zip. What data structure/algorithm would you recommend to use to implement? </p>

<p>PS: I intend to use another Timer to regularly restore missing files.</p>

<p>Thank you!</p>
