Python AddIns cannot be started: "No valid scripting environment is defined for the AddIn .."/"No suitable installation of Python 3.9 was found"

Symptom - PTV Visum was unable to find a suitable Python 2.7/3.7/3.9 installation.- Python 2.7 and/or 3.7/3.9 is listed as "not available" in the "User Preferences"…

Setup: "Please wait while setup downloads additional files..."/Examples2025.zip/"HTTP error 403: Other error"

Symptom The PTV Visum 2025 setup aborts with an error message at the beginning when the file "Examples2025.zip" is to be downloaded because the server cannot…

Difference between Release versions and Service packs/Download Setups and Updates

Question What is the difference between a Release version and a Service pack, and where can I download them? Answer - Release versions are independent program versions which…

Silent installation/with Python

Question Is it possible to install PTV Visum including Python with a Silent-Installation? Answer Yes, since PTV Visum 2020 that is possible. Refer to the Installation Manual in:https://cgi.ptvgroup.com/php/vision-setups/?lng=enorc:\Program…

Inst: Demo version/test version/trial version/Viewer

Symptom Is PTV Visum available as demo version? Resolution Yes, a demo version can be obtained here and can be used as a viewer: https://www.ptvgroup.com/en/solutions/products/ptv-visum/demo-version/ https://cgi.ptvgroup.com/vision-help/VISUM_2024_ENG/Content/License-mgt/Demo-version-info.htm      

HBEFA data warning: "No or incomplete installation of HBEFA data."

Symptom After installing and starting Visum, a warning is displayed:"HBEFA data warning": "No or incomplete installation of HBEFA data. Please install the HBEFA data package provided…

Dialog "Projections" empty

Symptom The coordinate systems cannot be selected because the dialog "Projections" displays neither folders nor projection files (*.PRJ). Cause Sometimes it happens that no projection files are copied…

Install service pack: "This is not a valid PTV Visum folder!"

Symptom During the installation an error message appears: "This is not a valid PTV Visum folder!" Cause A Service pack was started, but a matching installation created by the…

Hardware/Software/Operating system/RAM requirements

Question What are the requirements on hardware and operating system? Answer You will find the system requirements for PTV Visum, PTV Vissim, PTV VisWalk and PTV Vistro on…

Crash/Start/Splash screen/Freezing: "PTV Visum Transport Planning System has stopped working"

Symptom After the installation by the setup or of any Servicepack, any attempt to start PTV Visum/PTV Vissim leads to a program crash, the graphical user…

Import/Export Access: "Could not start VisumDbServer.exe"

Symptom The import or export of a MS-Access database fails with the following error message:- "Could not start VisumDbServer.exe"- "VisumDbServer not registered correctly" Cause The component VisumDBServer.exe/VisumMdbServer.exe was…

Silent installation

Question Is it possible to install PTV Visum/Vissim/Vistro with a Silent-Installation? Answer Regarding the Silent installation please refer to the Installation Manual in:https://cgi.ptvgroup.com/php/vision-setups/?lng=en or c:\Program Files\PTV Vision\PTV Visum 2025\Doc\Eng\Installation_Visum2025.pdf, ch.…