Hi hwm,
Sorry, this is the only thing I could find, I hope this will work for you.
How to resize a image in Microsoft Paint.
Click Start, Programs, Accessories, then Paint to start Microsoft Paint.
Open the image file you wish to edit.
Click the Image Menu at the top and select Stretch/Skew Image.
Choose a percentage figure to resize the image. To avoid distortion, choose the same percentage for the horizontal and vertical stretch.
Click OK.
Once you have the desired size, click File, then Save or click Save As... to prevent overwriting the original image.
Thank You.