RoaDRain 3.8.6 / Support
Set up with confidence.
Installation, device activation and practical guidance for keeping an engineering study traceable.
01 / System requirements
Windows desktop.
- Operating system
- Windows 10, build 19041 or later; Windows 11
- Architecture
- Intel / AMD x64. Native ARM64 is not validated.
- Storage
- At least 2 GB for installation, plus terrain, cache and project files.
- Connectivity
- Required for installation and online data or maps. License validation works locally.
Study size and terrain resolution affect memory, storage and processing time. No fixed basin-capacity guarantee is implied.
02 / Install & activate
Install from Microsoft Store
Open the official listing and select Install. Python, geospatial dependencies and the application web runtime are included in the Store package.
Export the device request
Launch RoaDRain. Open Application → Manage license and export a
.rdrequestfor the computer and Windows account that will use the app.Arrange the license
Email the request files and selected plan to Hydroism. The quotation confirms payment, term and entitlement details.
Import the issued file
After purchase confirmation, import the supplied
.rdlicense. Check the device, expiry and included map entitlement in Manage license.
03 / Updates & projects
Keep the application and the project record current.
Use Microsoft Store to update the Store edition. Save your projects and keep an independent backup of inputs and outputs before updating. Open Road projects as .rdn and Watershed projects as .hdn.
If moving from a separately supplied EXE or personal test build, contact support about the appropriate migration and license request. Those builds use a different installation channel.
04 / Troubleshooting
Start with the stated cause.
The diagnostic message, affected outlet and processing stage are more useful than a screenshot of the progress percentage alone.
The Store listing does not appear
Use the direct Store link above. If it remains unavailable, confirm the selected Microsoft Store country/region and contact Hydroism with the exact message. Availability can vary by release settings and market.
The license is not accepted
Use the .rdlicense file issued for this computer and Windows account. Confirm the product version and license dates in Manage license. Send the displayed reason and request identifier to support; do not edit the license file.
A calculation stops
Read the failed stage and its stated cause. Check the DEM coverage, coordinate reference system, road or outlet geometry and rainfall inputs. Include the exported diagnostic bundle and the smallest reproducible input set in a support request.
Some basins or crossings are missing
Review the omitted-result summary. Independently valid outputs may still be exported, but unresolved outlets are not zero-flow results. Check outlet placement, DEM edges, flow connectivity and the reported reason before issuing the study.
A reference result differs from the DEM
Treat the comparison as a review finding. Check source scale, outlet location and catchment boundaries. The optional reference does not silently replace DEM-derived calculations.
Maps or a report background are unavailable
Open Application → Map connection → Test connection. Check the map entitlement in Manage license, including any provider-expiry message. After restoring access, regenerate the report outputs. A missing imagery source should be identified in the report. It does not by itself validate or invalidate the terrain analysis.
05 / Technical support
Send a focused
support request.
Include your application version, Windows version, module, steps to reproduce, exact message and diagnostic bundle. Add a small sample input where appropriate. Agree a secure method before sending confidential project material.
hydroism.amin@gmail.comExplore Hydroism