How do schools evaluate the work experience of entrepreneurs

I'm what would be called a non-traditional student. I finished my undergrad degree (engineering) later in life. Following that, I worked for a little over 4 years. Had my first child, left my job, and after a year of being a stay at home mom, I created a sub-chapter S corporation. I was fairly successful designing databases and websites for 5 years and then closed the business shortly after having baby number 2. (Both of my children have special needs and they needed me full-time)

Although I did not work full-time consistently at my business, how will that work experience be viewed by admissions? Additionally, I have worked since the age of 15. Mostly full-time, but will they even look at that considering it was pre-college?

One of my applications will be for an executive/weekend program. Sure, I am not working full-time nor do I have the full post-undergrad work experience of X yrs at full-time, but I am willing to "donate" my fee just to get my application in front of them.

Bottom line, I don't want to be viewed as a stay at home mom with less than 5 years work experience because I have so much more experience than that.

Thanks for any advice.