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RW_38241641-Visitor
1-Visitor
June 11, 2025
Solved

Cannot reinstall MATHCAD 15 because MSXML 4.0 SP2 is unavailable

I am trying to reinstall MATHCAD 15 (JA150006E3006-Q3PF-8VYW)on a new WINDOWS 11 computer. The installation fails by telling me that MSXML 4.0 SP2 is required. The link provided is dead and Microsoft tells me that MSXML 4.0 SP2 is no longer available.
What should I do?
Best regards,
Rich
ppal_255687Answer
18-Opal
June 12, 2025

Try 

https://download.cnet.com/MSXML-4-0-Service-Pack-2-Microsoft-XML-Core-Services/3000-2070_4-10726922.html

Install Microsoft Visual C++ 2005 SP1 Redistributable Package

A widely successful workaround involves pre-installing the Microsoft Visual C++ 2005 SP1 Redistributable Package. This often resolves the dependency issue without needing to hunt down the specific MSXML 4.0 SP2 file.

Steps:

  1. Download the Correct Version: Go to the official Microsoft Download Center to get the "Microsoft Visual C++ 2005 Service Pack 1 Redistributable Package MFC Security Update." It is crucial to download the correct version for your system architecture. For most modern Windows 11 systems, you will need the 64-bit version (vcredist_x64.exe).

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4 replies

ppal_25568718-OpalAnswer
18-Opal
June 12, 2025

Try 

https://download.cnet.com/MSXML-4-0-Service-Pack-2-Microsoft-XML-Core-Services/3000-2070_4-10726922.html

Install Microsoft Visual C++ 2005 SP1 Redistributable Package

A widely successful workaround involves pre-installing the Microsoft Visual C++ 2005 SP1 Redistributable Package. This often resolves the dependency issue without needing to hunt down the specific MSXML 4.0 SP2 file.

Steps:

  1. Download the Correct Version: Go to the official Microsoft Download Center to get the "Microsoft Visual C++ 2005 Service Pack 1 Redistributable Package MFC Security Update." It is crucial to download the correct version for your system architecture. For most modern Windows 11 systems, you will need the 64-bit version (vcredist_x64.exe).

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    RW_38241641-VisitorAuthor
    1-Visitor
    June 12, 2025

    Hi ppal,

     

    Thanks for the quick response.  I was able to install MSXML 4.0 SP2 using your links and the Windows 11 control panel tells me that it is installed.  Unfortunately, the reinstallation of MATHCAD 15 still fails. It was probably silly of me to expect that software that I had purchased 15 years ago would work on a new computer.  

     

    I'm going to give up on MATHCAD and try one of the free work-a-likes.  I'm a part-time contractor at Corning these days, and it would not pay me to purchase new MATHCAD on my own dime.  As plan B, I can do the same calculations in Python, but the documentation is tedious.

     

    Best regards,

    Rich

     

     

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    LucMeekes23-Emerald IV
    23-Emerald IV
    June 12, 2025

    How does the installation of Mathcad still fail? At least one user has reported Mathcad 15 working on Windows 11.

    So what is failing for your installation?

     

    You should know this: https://community.ptc.com/t5/Mathcad-Tips/Official-PTC-Mathcad-15-and-Prime-1-6-End-of-Sale-Announcement/ta-p/818870 

    I think your biggest challenge is to get Mathcad 15 licensed. PTC has stopped the license server a couple of years ago, so simple on-line licensing is not possible. You'd have to contact PTC licensing support to get your license transferred to the new PC.

     

    Success!
    Luc

     

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