Important Microsoft Visual C++ 2026 Compatibility Update for MHI Products
Situation
Microsoft has released Visual Studio 2026 and following their current practice, the corresponding Visual C++ 2026 redistributables will replace any previous installed Visual C++ 2015…2022 Redistributables. These new 2026 Redistributables will be installed on your machine if you,
- Install Visual Studio 2026, or
- Explicitly install the Redistributables from https://visualstudio.com/downloads
Problem
Microsoft has departed from their traditional naming schema for the Visual C++ 2026 redistributables, and as a result, the installers used for MHI Products,
- The MyUpdater utility, versions 1.0.68 and prior, and
- The Installer utility, versions 1.0.1.10 and prior
…will not be able to detect the new Visual C++ 2026 redistributables, and will most likely not be able to
- Install or update the selected MHI Product (MyUpdater and Installer utility), or
- Launch the selected MHI Product (MyUpdater only)
Resolving MyUpdater Issues
To avoid issues when using the MyUpdater Utility, please update the MyUpdater Utility to our newest version that supports Visual C++ 2026 redistributables:
- Download the latest MyUpdater 1.0.6.9 from the following link:
https://ptcstoragegroup.blob.core.windows.net/mycentredownloads/MyUpdater_Installer.zip - Unzip the file once only to a temp folder.
- Launch Installer.exe and allow it to elevate when prompted to.
- It should create the following 2 desktop shortcuts:
Hereafter,
- Launch MyUpdater (elevated) - if you will install, update, or remove MHI Products
- Launch MyUpdater (user) - to just launch/run any installed MHI Products
Resolving Installer Utility Issues
The Installer Utility packages are used to install the following MHI Products,
- PSCAD 4.2.1
- PSCAD 5.0.2, 5.1.x
- ETAP EM Transient 5.0.2
- License Manager 1.50+
- PRSIM
- Enerplot
- DFScan
- FACE
- PSCAD Initializer
If you encounter any messages like the following when installing MHI Products released before Nov 12, 2025,
then you have 2 options which are described below.
Solution 1
Contact support@mhi.ca to see if an updated installer is available for the MHI Product you wish to install.
Solution 2
- Uninstall Visual C++ 2026 Redistributable (x86) if it is installed
- Uninstall Visual C++ 2026 Redistributable (x64) if it is installed
- Download and install the Visual C++ 2022 Redistributables (86) and (x64) from the following links:
https://ptcstoragegroup.blob.core.windows.net/redistributables/vc2022/vc_redist.x86.exe
https://ptcstoragegroup.blob.core.windows.net/redistributables/vc2022/vc_redist.x64.exe - Proceed to install the MHI Product
- Reinstall the Visual C++ 2026 Redistributables if needed
New Numbering Format
The numbering format has changed as follows:
- From this format: Microsoft Visual C++ 20## Redistributable (x86 or x64) - ##.##.#####
- To this format: Microsoft Visual C++ v14 Redistributable (x86 or x64) - ##.##.#####