How to increase application startup speed

For increasing the application startup speed add the "/prefetch:1" to the target which can be viewed by right clicking the application.At the target space add the /prefetch:1 after putting a space .For example if you wish to start yahoo messenger then add the /prefetch:1 to the target it looks like this..."C:\Program Files\Yahoo!\Messenger\YahooMessenger.exe" /prefetch:1