Display window before or after logon

Hi,

I know this may sound silly….my company is looking for a product that can immediately display..or popup a list of “company weekly events” either BEFORE or AFTER the end user logs into windows…(or possibly when they press CTRL+ALT+DEL). This is NOT a legal caption…in other words, the user will be automatically notified of what has and will happen on a weekly basis. In addition, the information need to be changed/updated also on a weekly basis or when needed.

Could someone please help and advise whether there is suc a product out there that can do the job.

Thanks for your help in advance.