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XP Unlimited on Duo or Quad Core

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Last Modified: 2013-12-09
I need to purchase a new system that will run XPUnlimited (essentially Terminal Services).  It will be running on a Windows XP OS and needs to support between 30 and 40 TS users.  

Will XP benefit from Quad Cores.

As XPUnlimited basically uses the Microsoft TS engine, I'm wondering whether TS would benefit more from a Quad core processor or a Dual core of higher frequency.

XPUnlimited's website is at www.xpunlimited.com
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Commented:
Windows XP is not a main stream solution for what you want to do....you should be looking at Server 2003.  Scaling in a TS environment is typically between 10 - 15 users per processor.
Tony DavidsonCyber Security Specialist

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Commented:
Nevertheless, we're using XPUnlimited on an XP box.

So back to my questions:

1. Will XP benefit from a quad-core (i.e. is it supported - it's not clear from Microsoft's site); and

2. Is TS multi-threaded to the extent that a quad-core at a lower frequency will be better than a dual-core
Windows XP virtually supports dual CPUs and it won't benefit so much from the Quad Core CPU unless the running App is well-written for multi-threading; otherwise, you'll only profit the larger cache.
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Tony DavidsonCyber Security Specialist

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Commented:
I'll have to pass your comments on about the licensing to the guys at XPUnlimited. They've lead us to believe it is a licensed/legal solution.

So does TS benefit from multiple cores, or is that not relevant if the actual app doesn't?
Cláudio RodriguesFounder and CEO
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Commented:
Well the base OS does benefit from multiple cores but of course if the apps also do it, things get much better.
The main thing is how well XP benefits from it when compared to Server 2003. That I have no idea as I am no XP MVP. :-)
Please pass my comments to them. I can tell you that is indeed the case as I discussed this many times directly with the TS developers/manager in Redmond.

Claudio Rodrigues

Microsoft MVP
Windows Server - Terminal Services
Cláudio RodriguesFounder and CEO
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Well I checked their website and the EULA is clear, exactly like I mentioned. Every device connecting does indeed needs its own Windows XP Pro license. This means if the device needs that license REGARDLESS of the OS it is running. So if your PC has XP Pro and you connect to the XPUnlimited box you need a Windows XP Pro license (another one, one for the local OS AND one to access the XPUnlimited box).
If you do the math, for 40 users you are talking about US$ 299 x 40 (retail) that equals to almost US$ 12,000.
A TS, including the OS license (Server 2003) will cost you US$ 999 plus 40 x US$ 75.00 (average TS CAL cost) for a total of US$ 4,000 or 1/3 of their cost (that does NOT include the base XP Pro license plus their own software cost). Add to that you will be supported if using 2003 by Microsoft in case an application does not work properly, in case of bugs, etc. If you call Microsoft and tell them the machine you are having issues has multiple users connected at the same time (XP Pro box) and you run XPUnlimited or WinConnect Server XP, you will NOT be given support as this is clearly an unsupported configuration.

Honestly I have been on the TS business for over 15 years and worked a lot on all these solutions for XP (ThinsoftInc contacted me when they were developing WinConnect Server XP to provide feedback, ideas, beta test, etc) and given the risk for a business when running such solutions, I do not think it is worth. Unless you stay illegal, not buying the required XP licenses, it is not cost effective at all. Plus, as explained, gives you an unsupported solution. Most business simply cannot stand or even think they run their business on an unsupported solution.

I know it is your company, your decision. But for all my clients I cannot simply take the risk. If crap happens and I need Microsoft to jump onboard, it must be supported. Simple as that. Otherwise you may end up with a huge headache.

Cheers!

Claudio Rodrigues

Microsoft MVP
Windows Server - Terminal Services
Tony DavidsonCyber Security Specialist

Author

Commented:
It's really more of a feature thing than a cost thing.  XPUnlimited is far more like Citrix than like vanilla TS.

Can you let me know the paragraph in EULA that explains they'll need 2 XP licenses to connect to another XP box.  That's not what they're advising and I certainly don't profess to be a licensing expert.
Cláudio RodriguesFounder and CEO
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Commented:
Section 1.4 clearly states that. Just download the EULA from the XPUnlimited website (they put it there).
Even if you need Citrix like features, you can get that much cheaper than what you have. There are many options out there (WBISoft, 2X - their ApplicationServer product does all you probably need AND more than XPUnlimited, Provision Networks, etc).
So with any of these products you will have all the Citrix features at a very low cost in most cases.

Cheers.

Claudio Rodrigues

Microsoft MVP
Windows Server - Terminal Services
Tony DavidsonCyber Security Specialist

Author

Commented:
Thanks for the help.
Tony DavidsonCyber Security Specialist

Author

Commented:
I've closed the question as my original question about quad-cores was answered.

I've had a look on XPU's site but can't see the Microsoft EULA.  I can see their license terms only.  Can you give me a URL for this please.

thks,
tony
Tony DavidsonCyber Security Specialist

Author

Commented:
Don't worry - found it.  
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