H1B petition approved for self.When should H4 process start for spouse

Hi.My H1B visa was initiated by my company and the petition is approved now.I797 document has not been received yet but confirmation on petition approval has reached the office.Now I want to take my spouse along with me.When should the process begin for the H4 visa for him?when should i get started on processes for him?

PLease let me know!

I think you are outside US. In that case, you will have to appear for H-1 stamping. Use the same process to initiate the H-4 stamping. Once stamped, he can travel w/ you to US.

Stamping involves getting all the documents from employer, completing DS-160 form, submitting visa fees, scheduling interview, going for biometrics and finally appearing for interview.