hi, i need some help to embed macro in ppt presentation

[m0fo]

hi,

i have a PPT presentation, and i want to send a MsgBox to the user when he press F5 (Running it), untill here everything is ok.

i used a macro to do that and it worked allright.

but when i open the PPT its says "you'r using macro's that could contain viruses...... bla bla" how can i get ride of this message ? is there any other way i can embed a code into the ppt presentation ?

thanks for the helpers