Begin by accessing the Zoom web portal. Navigate to the Reports section, which can be found under the Account Management tab. Here, you can generate reports on meetings, webinars, and participants. Select the necessary report type, set the date range, and export the data. Zoom allows you to export reports in CSV format, which is suitable for further processing and loading into MSSQL.

Once you've downloaded the CSV files from Zoom, open them using a spreadsheet application like Microsoft Excel or Google Sheets. Review the data to ensure it is complete and accurate. Make any necessary adjustments or clean the data to remove any irrelevant information or errors. Save the final version of the file in CSV format.

Open SQL Server Management Studio (SSMS) or your preferred SQL client. Connect to your MSSQL database server and create a new database if necessary. Within this database, create a table that matches the structure of the data exported from Zoom. Define the appropriate data types for each column based on the data in the CSV file to ensure compatibility.

Use the BULK INSERT command to load the CSV data into the MSSQL table. First, ensure the CSV file is accessible from the server hosting the MSSQL database. You can use the following SQL command template:
```
BULK INSERT YourDatabaseName.dbo.YourTableName
FROM 'C:\Path\To\Your\File.csv'
WITH
(
FIRSTROW = 2,
FIELDTERMINATOR = ',',
ROWTERMINATOR = '\n',
TABLOCK
);
```
Adjust the file path, database, and table names as necessary. This command will import the data while treating the first row as headers.

Once the BULK INSERT operation is complete, run a SELECT query to verify that the data has been imported correctly into the MSSQL table. Check for any inconsistencies or missing data. If there are issues, troubleshoot by checking the CSV formatting and the BULK INSERT settings.

If you need to perform this data transfer regularly, consider writing a script using a programming language such as Python or PowerShell to automate the extraction, preparation, and loading process. This script can be scheduled to run at regular intervals using a task scheduler to streamline the workflow.

After successfully importing the data, ensure that the MSSQL database is secure. Set appropriate user permissions to control access to the data. Regularly back up the database to prevent data loss. Implement security measures such as encryption and role-based access control to protect sensitive information.

By following these steps, you can manually transfer data from Zoom to an MSSQL destination without relying on third-party connectors or integrations.