Creating RAS dialup in VB .NET? 1

[ikidd]

I'm trying to create a VPN (PPTP) connection entirely in code, use it, and destroy it. So far, the only thing I've been able to find is references to RASENTRY, RasSetEntryProperties, etc for use in C++. Is this implemented in VB .NET and if so, are there any suggestions about how to go about it? I've spent quite a while looking and it's not very obvious what the methodology would be.

Thanks
Ian Kidd

 

[stravis]

I found an example in C# that will get you started a great deal faster than trying to do so in C++.

http://www.codeproject.com/useritems/rasdemo.asp?target=ras

 

[ICTECH]

Hi ikidd

Did you ever get this working? I'm looking to do something very similair and haven't found much good information.. Can you post how you make a VPN connection using VB.NET?

Thanks...

 

[ikidd]

I looked briefly at Stravis' link, and made a quick program with the C++ addin. It looks like it would work, but whomever wrote it wasn't too good at English and some of the functions are mispelled, so you have to get used to that.

I tried the Rasdemo project in the link and it gives me a system exception that I track down to a message in the locals windows as 'arg = "Message "There was a hardware failure in the modem (or other connecting device)."' when I try a VPN (not dialup phone#) that is more than the 64 chars allowed for the argument in the C# function call (onNotify1). I know nothing about C#, I can sort of blindly follow it so I can't really debug it. I tried a VB project and added the RAS module as a reference but couldn't decipher the usage. It's about as well documented as my own code, which is to say not at all. I didn't spend too much time on it but I imagine you could troubleshoot it out if you knew some C#.


I ended up just using Rasdial commandline and creating Phonebook entries each time, it was faster for my app.

If you do get it working, I'd love to hear how because I have a few uses for it. I find it hard to imagine there isn't a VB function that does the same, where you can create and tear down phonebook entries on the fly. The functions I found in MSDN only seem to apply to c# and had no equivalents in VB.NET. Perhaps it's too low-level. Or perhaps I am

 

[DrJavaJoe]

I ran across this http://groups.google.com/groups?selm=An87uzi%23BHA.1532%40cpmsftngxa08]News Group Post[/url] and that someone may find it useful and fitting to this thread.


Two strings walk into a bar. The first string says to the bartender: 'Bartender, I'll have a beer. u.5n$x5t?*&4ru!2[sACC~ErJ'. The second string says: 'Pardon my friend, he isn't NULL terminated'.