KeepAwake is a useful freeware application developed by ozkaya over at xda-developers, that allows the user to prevent specific windows mobile programs from going into standby (suspend) mode. Plus, it includes the option to stop standby (suspend) when specific programs are running in just the foreground, or both the foreground and background. Please note that KeepAwake is set to run minimized at start up, or you can remove the start up shortcut in \Windows\Startup\KeepAwake.lnk, and just run it when you need to use it.
Here's a link to ozkaya's xda thread for more information, install tips, and to check for updates:
http://forum.xda-developers.com/showthread.php?t=661472
Best to all,
R