I try to install a program (.exe)in the NSIS Script here is my code 

```
;Install PDFXVIEWER
SetOutPath "$INSTDIR\PdfViewer"
File /r "file\PdfViewer\PDFXV.exe"  
ExecWait 'msiexec /i "file\PdfViewer\PDFXV.exe" /VERYSILENT /NORESTART /DIR="$INSTDIR\PdfViewer"'

```

However, during the installation i got a windows installer popup ! : 
<http://i.stack.imgur.com/g8Gdh.jpg>

and the program is not installed at all.

Can anyone point me my error??

thanks