in/on my business?

[petr222]

I have also been spending these early days of 2007 working, not only in my business, but on my business. – what is the difference in the meaning between on my business and in my business?
Thanks in advance
Petr

[Anglika]

"in my business" - within the office/shop/factory

"on my business" - doing my work

[2006]

I think, in that sentence the person means:

"in my business" = doing the daily work of my business, seeing that my customers needs are being met and that things are running as smoothly as possible

"on my business" = trying to grow my business, trying to making my business more effective and efficient