The ShellExecute() WIN API #12636 will do that w/o need to know Acrobat reader location.

>Hello !
>
>You may read a correct path to Acrobat reader from Windows registry,
>substitute a %1 by the name of the file and then
>run it by:
>
>RUN /N command_line , where
>command_line is like string like 'C:\ACROREAD\ACROREAD.EXE MYFILE.PDF'
>
>If you need to know how to read it, I can send you a code : 'cos it takes a some place
>
>Good luck