[DllImport("rasapi32.dll", SetLastError=true)]
static extern int RasValidateEntryName(string lpszPhonebook, string lpszEntry);
Declare Function RasValidateEntryName Lib "rasapi32.dll" (TODO) As TODO
None.
Pass null as the first argument, returns 0 for invalid entry name.
Please add some!
int retval;
retval = RasValidateEntryName(null, "Dud");
// retval = 0
http://www.codeplex.com/DotRas