Maybe those PC's are configure to automatically dial one specific connection? Did you try to set flag INTERNET_DIAL_FORCE_PROMPT ?
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>I have an application using Wininet.dll and InternetDial function to establish a dial up connection.
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>When my app calls the InternetDial function non of the dial up already configure on the PC appears in the dial up box. It works on some machine and not others
--sb--