I think it could be it :)
I will let you know

>It would happen for folders/file names with spaces. You'll have to enclose the file name in double quotes to fix it
>

>oShell 	= CREATEOBJECT("WScript.Shell")
>lcFileName = GETFILE("pdf")
>* Enclouse into double quotes to avoid problem with spaces in file name
>lcFileName = ["] + lcFileName + ["]
>oShell.Run(lcFileName,1)
>

>
>>Yes I retrieve the filename by Getfile() and the file can be open without problem outside VFP
>>It seems to give me no problem with Jpg files while I got into problems when trying to open Xls or Pdf files
>>
>>