Do you have the full version of Acrobat installed? This is required because just installing the free Acrobat reader will not work. Also read Rick Strahl's white paper on all the specifics on doing this:

http://www.west-wind.com/presentations/pdfwriter/pdfwriter.htm

>Hello Sergei:
> I try with your cade and this function perfectly but with my report this program i don't make the PDF file.
> Are there some restrictions on the reports ?
>
>
>*****************************************
>SET PROCEDURE TO ..\clases\WWAPI ADDITIVE
>SET PROCEDURE TO ..\clases\WWPDF ADDITIVE
>
>oPDF=CREATE('wwPDF40')
>
>*** Filter condition
>use xfactu
>
>llResult = oPDF.PrintReport('lst12041.frx','c:\temp\lst12041.pdf')
>******************************************************************
>
>Thanks in advance