Why lah UNO hate me?

I HATE this line:
Error (<class conversion.com.sun.star.lang.IllegalArgumentException at 0xb7bc8d1c>) during conversion:URL seems to be an unsupported one.

Because of this line, I'm keep whining for whole day!

I want OpenOffice convert my document to PDF using UNO. Works perfectly in my development box, but when using different box it don't like me. Hate deployment, hate hate ...

I wish that I'm get paid by the line :D , so I can apply this cheat in my code:

If Request.QueryString("source_url") = "" Then
  strRedirect = strRedirect & "&verify=1"
  If Request.QueryString("process") = "1" Then
    strRedirect = strRedirect & "&process=1"
  End If
  Response.Redirect(strRedirect)
Else
  strRedirect = strRedirect & "&verify=1"
  If Request.QueryString("process") = "1" Then
    strRedirect = strRedirect & "&process=1"
  End If
  Response.Redirect(strRedirect)
End If