Question : CITRIX vs. Terminal server

I have setup my server for terminal server using Windows 2000 server in application mode. I like to know the benefit of using CITRIX - what eactly is that going to add to my infrastructure?? ALso, what product of CITRIX is a must to have? Please provide me with as much as informaiton as possible. Thanks in advance for your help.

Answer : CITRIX vs. Terminal server

Many differences:
Citrix is MUCH more secure, you can run all the traffic in 128 bit SSL.  You would need to setup a few boxes though, Citrix secure gateway, a ticket authority, a citrix server, and if you want to publish your apps on the web you have an NFUSE server.
Citrix is much more stable as far as how many users you can get running per server.
You have the ability to publish a single application to a user so if I am Joe I login and get Internet explorer, but John might login and have Internet explorer and WORD.  You can do this using the Citrix NFuse page which is just a web page and the users will see applications or you can do this just using the server and ciitrix clients.  You also have to keep in mind licensing which is big.  Terminal server cals are around 80 bucks a piece for each client.  Citrix requires that you use a terminal server cal and a citrix cal and the citrix cals are around 200 (I think) been a while since I bought some.
with citrix if you get alot of users you can take a couple servers and load balance the applications so each user will get moved to the server with the most resources available, fewest users, etc all depending on what you setup.
You can also run dumb terminals in the office and people can run an entire desktop on one using just the citrix server.
CItrix runs on the ICA traffic protocol and Terminal Services runs on the RDP Protocol.  ICA Is much quicker if you compare the users experience.
Plenty more but most companies that rollout remote thin clients use citrix and as all MS products TS has alot more vulnerabilities.