After installing IRM3, please unzip the files.
Then, select [File] - [Creating Project] in Menu.
Dialog comes up. Input project name in English to create project folder.
This is the sample putting a project name as 'iRPG'.
After creating project folder, the 'workspace' folder appears on the unzipped file same as 'iRPGMaker.exe'.
Project folder will be in 'workspace' folder.