First I have to ask why you would even want to do this? Unless you do not have Internet access all the service information you could possibly need is on-line at FMC Dealer. Also in order to use IDS you really should have an Internet connection to access calibration files and software updates.
Second, to answer your question, the PC you want other PC's to access will need to have file sharing enabled. This is considered a dangerous practice as it leaves your computer open to malicious activity.