Silent Uninstall PDF Creator 0.8.0

I'm trying to migrate the pdf creator  v0.8.0  to 1.7.2 in  Windows XP SP3 x86 Workstations, But i am stuck with a problem....the silent removal of  pdfcreator v0.8.0 always show a msg box asking if a really want to remove the program, i tried to run a SCCM package  with the following commands :


MsiExec.exe /passive /x{0001B4FD-9EA3-4D90-A79E-FD14BA3AB01D}


C:\\Program Files\\PDFCreator\\unins000.exe /VERYSILENT

PDFCreator-1_7_2_setup.exe  /VERYSILENT /FORCEINSTALL

None of this worked so far, the msg box asking if i really want to remove the application always appears.....
The beahaviour is the same, when a creat a batch file and try to run it via psexec....
Could someone please help me with this problem?