Could you please tell me how to use "pdftk mypdf.pdf dump data | findstr NumberOfPages in powerbuilder run command and save this metadata in a file by using the following code like this:

string ls_runinput, ls_outputfile

ls_outputfile = "c:\test.exe"
ls_runinput = "c:\pdftk\pdftk.exe mypdf.pdf dump_data | findstr NumberOfPages >"+ls_outputfile 
Run(ls_runinput,Minimized!)

li_fileopen = FileOpen(ls_outputfile ,TextMode!, Read!, Shared!)

The problem is that Run command is executed, the file is created, but fileopen return -1 ? Is it maybe that run cannot recognize the "|" character? What should you propose me to write the right code? Iam using powerbuilder 10.5.2 , Thanks very much in advance