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DavidWatson1-Visitor
1-Visitor
September 9, 2010
Question

Multiple licenses, one machine?

  • September 9, 2010
  • 1 reply
  • 3702 views

Hi All,

I'm wondering if anyone knows under what circumstances Mathcad would require multiple licenses for a single machine. The reason I ask is that we have users accessing Mathcad files via our electronic document control software and it appears that for every Mathcad file they open, they require another licence. For example, with 4 documents open, 4 licence files are needed. I am under the impression that opening multiple documents in Mathcad should not require multiple licenses.

I would welcome any comments,

Cheers,

Dave

1 reply

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IRstuff1-Visitor
1-Visitor
September 9, 2010

It shouldn't. However, if your document server is somehow forcing a new instance of Mathcad itself for every file opened, then you'd have 4 instances of Mathcad open, which would require 4 licenses. If your users check out the file first, copy to their local hard drive, and open them from within Mathcad, I would expect no problems.

TTFN

D
DavidWatson1-VisitorAuthor
1-Visitor
September 9, 2010

Eden Mei wrote:

...if your document server is somehow forcing a new instance of Mathcad itself for every file opened, then you'd have 4 instances of Mathcad open, which would require 4 licenses.

Thanks, Eden. I agree with you. It is likely something in the document server that is prompting a new instance of Mathcad. I only wish that I knew what the mechanism was that triggers this rather than allowing the document open in an existing instance.

There are the work-arounds of either opening one document at a time or checking out the document locally. The first option is obviously very inconvenient. The second option most likely goes against the QA procedure the company is trying to enforce. Still, it's the best option so far. Thanks.

Kind regards,

Dave

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Ninetrees3-Newcomer
3-Newcomer
September 10, 2010

How about drag and drop? That way the current invocation of Mathad would get the document, and there would be no local copies. Also, I am wondering whether the issue is related to the local machines and not to the server; i.e., which device decides how to invoke Mathcad? In Windows, the File Types dialog seems to have something to do with how program invocations are handled. See the "Use DDE" checkbox at your own risk. On my system, clicking a file opens in the last instance of Mathcad; I can have several open, at a cost of 63MB of RAM each, it seems. I don't get license questions. I occasionally use this method of opening several instances of Mathcad, rather than opening several docs in the same instance, because in Windows the Alt-Tab feature remembers the last referenced window, and Mathcad's Ctrl-Tab does not. So in Mathad I must Ctrl-Tab around the whole list just to get to the last doc that I viewed, whereas using Alt-Tab, I don't.

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