Ron, Check this article from MS: http://support.microsoft.com/default.aspx?scid=kb%3Ben-us%3B314482 It contains some good information about the page file and how it works. Towards the bottom of the article is the note: NOTE: If your computer contains multiple hard disks, you can also create a paging file for each hard disk. When information is distributed across multiple paging files, the hard disk controller can simultaneously read from and write to multiple hard disks. As a result, system performance is enhanced. Spider -----Original Message----- From: 24hoursupport-bounce@xxxxxxxxxxxxx [mailto:24hoursupport-bounce@xxxxxxxxxxxxx] On Behalf Of Ron Allen Sent: Thursday, June 12, 2003 1:34 PM To: 24hoursupport@xxxxxxxxxxxxx; 24hoursupport@xxxxxxxxx Subject: [24hoursupport] XP Swap File Question Hello Group, Does anyone know how efficiently Windows XP manages multiple swap files on different physical drives? The question came up simultaneously at work and on a developers list I belong to. XP allows you to have a swap file on every drive, if you want. The questions that came up specifically are (1) if the aggregate swap file space on multiple drives is the same as the allocated space on the C:\ drive, will there be any performance degradation, and (2) is XP smart enough to select which swap file to use to maximize efficiency, i.e. not one on the current active drive, one that is large enough for the current task without spanning swap files, etc. A third question that came up is, is it possible to manipulate/choose what swap file to use for a specific task from a .net program (C++ or C#). Basically, how do multiple swap files work under XP? Thanks, Ron For a web-based membership management utility and information on list policies, please see http://nibec.com/24hoursupport/ To unsubscribe, send a blank email to 24hoursupport-request@xxxxxxxxxxxxx with "unsubscribe" (without quotes) in the subject.