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AT_28449561-Visitor
1-Visitor
October 31, 2025
Question

Mathcad 15 does not open

  • October 31, 2025
  • 1 reply
  • 259 views
I am using Mathcad Release 15.0 and Datecodeunknown

Mathcad has not been opening for the past two weeks (no error message appears). The issue seems to be that the required file MSXML 4.0 SP2 was removed for security reasons, as it is outdated. The IT-department does not allow the file MSXML 4.0 SP2. Is there any workaround for this problem?

    1 reply

    L
    LucMeekes23-Emerald IV
    23-Emerald IV
    November 1, 2025

    The system requirements for Mathcad 15 state (amongst others):

    • Microsoft .NET Framework® 3.5 or later
    • MSXML 4.0 SP2 Pareser and SDK (this exact version of MSXML is required)
    • Microsoft Data Access Components (MDAC) 2.8 or later

     

    As this version of Mathcad is no longer supported by PTC, there is no other option than to have MSXML 4.0 SP2 installed on your PC.
    Maybe this security update helps to (be allowed by your IT-department to) keep it.

    Or you must transition to the latest (current) version of Prime, which is version 11. That 'll be a big change for you.

     

    Success!

    Luc

    V
    vnamboodheriCommunity Manager
    Community Manager
    November 7, 2025

    Hello @AT_2844956,

     

    It looks like you have a response from a community expert. If it helped you solve your question please mark the reply as the Accepted Solution. 
    Of course, if you have more to share on your issue, please let the Community know so other community members can continue to help you.

    Thanks,
    Vivek N.
    Community Moderation Team.

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