if you just want 时间/名称, then the search is probably easy, use classes in System.IO, like Directory/File/FileInfo and do your own filteringbut the more powerful way is to use indexing service, for example, see
HOW TO: Use an ASP.NET Application to Query an Indexing Service Catalog by Using Visual Basic .NET
http://support.microsoft.com/default.aspx?scid=kb;en-us;820105
HOW TO: Use an ASP.NET Application to Query an Indexing Service Catalog by Using Visual Basic .NET
http://support.microsoft.com/default.aspx?scid=kb;en-us;820105
http://www.vckbase.com/document/viewdoc.asp?id=734