Quote - (allan @ Dec 30 2008, 18:47)

You never - NEVER disable services from within msconfig. Services should always be adjusted from the Services.msc module (Administrative Tools). All you are doing is utilizing diagnostic mode by making changes in msconfig. As I said, that's the only item I happened to read, but it was enough.
Gupta did not recommend disabling services from msconfig. What you quoted referred to Startup items (not services) and they are safe to disable, as long as you know what you what items are what obviously.
It should be noted that unchecking items from Startup will cause Windows to go into 'Selective Startup' mode. This doesn't do any harm, but you can get Windows back to 'Normal Startup' by deleting all registry keys underneath startupfolder and startupreg in HKLM>Software>Microsoft>Shared Tools>MSConfig. This doesn't reenable any disabled Startup items.
Again, you should know what you are doing should you attempt this.
By the way, does anyone know if Vishal Gupta works for Microsoft? I'm sure I've worked with him before when I used to do work for Microsoft.