Q: I’m using VO 2.3. Can I get technical support if something goes wrong?
A: Technical support is not available for VO 2.3 and earlier versions. Please consider upgrading to the latest version.

Q: What has been changes in VO6?
A: The changes are summarized in What’s New in Version 6.0

Q: How can I open a VO2 project file (.vop) in VO6?
A: The VO2 project file is not supported in VO6. Instead, the VO2 scenario files could be imported using menu File -> Import -> Import VO2 Scenario (Current Project). Multiple scenario files could be imported at the same time.

Q: Something wrong happens when importing VO2 scenario file. How should I do?
A: The MDraw is not registered correctly. Please follow the steps below to register it.
1) Open the Command Prompt using Run as administrator.
2) In the command prompt
a. Go to the VO installation folder using the command. cd C:\Program Files (x86)\Visual OTTHYMO 6.0
b. Run the command below to register MDraw. regsvr32 mdraw32p.ocx
Then, re-run VO to import VO2 scenarios.

Q: Will my current dongle work with VO6?
A: Yes. Any working dongles could be upgraded to VO6. Starting from version 5.0.2008, a new cloud-based licensing system is added. Dongle users are recommended to upgrade to the new system.

Q: What’s the difference of the dongle-based license and cloud-based license?
A: The dongle-based license uses a hardware dongle and the cloud-based license uses a license file. With cloud-based license, all licenses are concurrent licenses and could be accessed anywhere. And the license server is on the cloud and there is no need to maintain a local license server.

Q: How can I setup the cloud-based license?
A: You need to have version 5.0.2008 and later installed to use the cloud-based license. When the program starts, the License Manager window will appear. Click the Add Cloud License File button on the bottom and select the license file. The license file will be automatically loaded when VO is started next time.

Q: I can’t connect to cloud server. What should I do?
A: A connection to the cloud server is required for the license system to work. The connection may be block by firewall or antivirus software. You need to contact your IT department to enable the connection. The cloud server is located at ls30.rlmcloud.com and the port used is 5053. Please provide this info when you contact the IT department.

Q: The system freezes when I’m trying to open Resource Library. How should I do?
A: Please delete all files with name stormlibrary in C:\ProgramData\Civica\VH5 and restart VO. Note that C:\ProgramData is a hidden folder. You could copy the folder path and paste it in address bar.

Q: What’s the difference between single-event model and continuous model in VO?
A: The single-event model simulates the hydrograph resulting from short-term rainfall event. It doesn’t account the evaporation and track the soil moisture. The continuous model extents the simulation to long-term period, e.g. 10-years. The evaporation and snow process is simulated to update the soil moisture.

Q: Can I convert a single-event VO model to continuous model? If yes, how?
A: Yes. The VO continuous model is designed to reuse all parameters in a single-event model. First create a continuous model and use the menu File -> Import -> Import VH Scenario (Current Project) to convert the model.

Q: The Project Manager window doesn’t show even I check it on in the Windows toolbox. How should I do?
A: The dockable window in VO include the Project Manager, Tool Box, Properties, Error List, Hydrograph Results and Parameter Tables. They could be turned on/off by using the windows menus in the Home ribbon. If you cannot see the windows after checking them on, delete Layout.fig in C:\ProgramData\Civica\VH5 and then restart VO5. Note that C:\ProgramData is a hidden folder. You could copy the folder path and paste it in address bar.

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