open tasks.json and add this task

"tasks": [

        {
            "label": "QSP validate",
            "group": "test",
            "type": "shell",
            "options": {
                "shell": {
                    "executable": "cmd.exe",
                    "args": [
                        "/q",
                        "/c"
                    ]
                }
            },
            "command": "C:\\qsp_parser\\qsp_parser.exe",
            "args": [
                "${file}"
            ],
            "problemMatcher": []
        }

]


where "C:\\qsp_parser\\qsp_parser.exe" is your path to qsp_parser.exe
click Terminal > Run Task... > QSP validate
don't forget to save file before call