1. What is this C# web service?
[uhs61074]:A web service allows a site to expose programmatic functionality via the Internet. Web services can accept messages and optionally return replies to those messages. communication can be done by XML.(i.e i can deply logic of calulater on one server (IIS server -Microsoft prodcut) - one can call that program by providing URL and attach parameter to that) and you will get the result in xml - to ur browser.)
http://www.c-sharpcorner.com/Upload...52005045531AM/IntroductionToWebServicesT.aspx
2. No idea what it is you are talking about. If you could provide some more information it would be helpful.
[uhs61074]: It is a program that runs without any ineteraction of user like running in background -it can be configured that this program start when computer start or user can manually start stop and resume. This kind of programing is usefull when we want to do excute logic on specific time interval up to user logs off. (i.e keep checking speific folder if some files are added or removed OR on specific interval download some files from server - same way like dispalying current date time on bottom system status bar of machine.
3. I believe you can use Applescript to parse XML. Not entirely sure. If not there is a Cocoa framework for this I think, or you can always use Python which is nice and easy.
[uhs61074]: I am new to MAC. I am not sure which language is powerfull to do programin on MAC OS
4. The what variable?
[uhs61074]: In Windows operating system - There are some default system folder where programs are installed and where user profile is stored.
You can visit this site:
http://www.wilsonmar.com/1envvars.htm
5. No registry on Macs. Nothing even remotely similar to it either (thank God).