>I would like to open a .pdf file from a VFP desktop application. I'm puzzled because the acrobat is randomly placed in the clients workstations.

As long as Acrobat or a PDF reader is installed, use Windows to open a file using the extension association.

DECLARE INTEGER ShellExecute ;
	    IN SHELL32.DLL ;
	    INTEGER nWinHandle,;
	    STRING cOperation,;
	    STRING cFileName,;
	    STRING cParameters,;
	    STRING cDirectory,;
	    INTEGER nShowWindow

lcFilename = "sample.pdf"
lcFolder = "c:\temp"
RETURN ShellExecute( 0, "Open", lcFilename, "", lcFolder, 1)