Description of CustomError :
CustomError for IIS--When errors occur they should be handled properly. Unfortunately, setting up customized error pages in IIS usually requires something many Web developers lack -- access to, and familiarity with, the Web server's administrative interface. With CustomError for IIS, developers can add customized error pages simply by uploading them to a designated directory. No administrator intervention is required. Customizing error pages becomes a normal part of site design and development. Hosting vendors and others who administer multi-homed servers no longer have to allow their clients MMC access, or worry about configuring multiple sets of error pages themselves.
ASP
