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DM_1012731612-Amethyst
12-Amethyst
December 6, 2024
Question

Prime 8: New Instances instead of new worksheets

  • December 6, 2024
  • 2 replies
  • 1015 views

hi, 

I recently installed Mathcad Prime 8 and every time I open a Mathcad sheet, it creates a new instance of Mathcad instead of opening a new worksheet in the already open Mathcad I have.

 

For example,

If I open three Mathcad files, I end up with three instances of Mathcad instead of just one with three worksheet open.

 

I have been looking around and it seems I could change the registry but I dont have access to it. Also, I dont remember doing this before. It may be due to the way Windows 10 treats Mathcad as an App?

 

Thanks!

2 replies

M
MartinHanak24-Ruby III
24-Ruby III
December 6, 2024

Hi,

start MCP8 from Start menu and use File > Open from MCP8.

W
Werner_E25-Diamond I
25-Diamond I
December 6, 2024
@DM_10127316 wrote:

hi, 

I recently installed Mathcad Prime 8 and every time I open a Mathcad sheet, it creates a new instance of Mathcad instead of opening a new worksheet in the already open Mathcad I have.

 

For example,

If I open three Mathcad files, I end up with three instances of Mathcad instead of just one with three worksheet open.

 

I have been looking around and it seems I could change the registry but I dont have access to it. Also, I dont remember doing this before. It may be due to the way Windows 10 treats Mathcad as an App?

 

Thanks!

That depends on how you "open" the Prime sheets.

If you open them by double clicking the sheet file and hoping that the correct file association is stored in Windows' registry, then you will end up with separate instances of the application.

If you want to have just one instance of the app, you have to open all files after the first one via the menu from within Prime.

 

D
DM_1012731612-AmethystAuthor
12-Amethyst
December 9, 2024

Thanks for your reply.

 

I double click a file and then it opens a new Mathcad instance. I thought that the default behaviour of Prime 8 is to:

a) Double click a file and then open a new instance of Prime 8 

b) Double click another file and open a new worksheet within the already opened Prime 8.

 

I checked with others and their program behave as I described in a) and b). It is just my program that does not behave as it should be.

 

Funnily enough, in this thread:
https://community.ptc.com/t5/Mathcad/Inquiry-About-Opening-Mathcad-Prime-Files-in-Multiple-Windows/m-p/986394

 

The user is asking how to do the opposite of what I want.

 

Regards,

M
MartinHanak24-Ruby III
24-Ruby III
December 9, 2024
@DM_10127316 wrote:

Thanks for your reply.

 

I double click a file and then it opens a new Mathcad instance. I thought that the default behaviour of Prime 8 is to:

a) Double click a file and then open a new instance of Prime 8 

b) Double click another file and open a new worksheet within the already opened Prime 8.

 

I checked with others and their program behave as I described in a) and b). It is just my program that does not behave as it should be.

 

Funnily enough, in this thread:
https://community.ptc.com/t5/Mathcad/Inquiry-About-Opening-Mathcad-Prime-Files-in-Multiple-Windows/m-p/986394

 

The user is asking how to do the opposite of what I want.

 

Regards,

Hi,

my last tip ... compare registry settings on your computer versus registry settings on another computer.

  • run regedit
  • go to Computer\HKEY_CLASSES_ROOT\MathcadPrime.exe\shell\Open\command folder -AND- look at (Default) value
  • go to Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Classes\MathcadPrime.exe\shell\Open\command folder -AND- look at (Default) value

 

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