System Requirements

Recommended environment


Operating System

Windows® 7 SP1 (32bit / 64bit) (*1)
Windows® 8.1 (32bit / 64bit) (*1)
Windows® 10 (32bit / 64bit)
Windows® 11(64bit)
*1 Microsoft Edge manipulation by structural analysis is not supported in Windows 7 and Windows 8.1.
CPU Quad-core or higher-end CPU (at least 1.8 GHz)
Memory At least 4GB RAM
Required minimum resolution 1024 x 768
Display Even when multiple displays are connected, only the first display can be operated

Japanese key layout recommended
If you use a keyboard that does not have Japanese key layout, some keys will not be entered as printed in key typing function.


・Curl RTE® 8.0.10 or later
・CELF® 3.3.0 or later
・Create/Delete/Read authority of files and folders in C:\TEMP
・Read registry permission (*2)
*2 File and registry permissions are required for all Windows login users using RPA.


Curl RTE is the software required to run CELF.
It will be automatically installed when you install CELF, but if you are using an earlier version, you can download the latest version from the following site.
You can find the currently installed version of Curl RTE on the "About Curl" tab in the "Curl Control Panel".

Browsers that support structural analysis (object recognition) operations

You can use the following browsers to operate web pages with the structuralanalysis feature.

  • Chromium Microsoft Edge.
    • Windows® 10 (32bit / 64bit)
      ※動作確認済みバージョン:20H2, 21H1, 21H2
    • Windows® 11(64bit)


Structural analysis (object recognition) is a function that analyzes the screen structure of an application or website, identifies items on the screen, and allows direct manipulation or acquisition of information.
Please refer to "Structural analysis feature" for the contents of the structural analysis function.


Internet Explorer 11 will no longer be supported by Microsoft on June 16, 2022 (Japan time).
After the end of support, Microsoft Edge will be launched when you try to launch Internet Explorer from a point in time determined by Microsoft.
When using the structural analysis function, please set the action in Edge.
In addition, pages that continue to need to be displayed in IE11 can be displayed in Edge’s Internet Explorer mode (IE mode). (For more information, please visit the official website for more information).
For pages opened in IE mode, the actions of the structural analysis function can be set in the same way as for normal pages.