Difficulty getting Visual Studio 2010 to attach to remote processes

Question

It's been years since I've had such a hard time getting something to work. I'm at home, on subnet 192.168.50.nnn. I VPN'd in to XYZ company office machines that are on subnet 192.168.40.nnn, domain XYZ. I can ping the remote machines, I can net map their drives and copy files back and forth, but for the life of me I cannot remotely debug a C# program running on a machine called R (ipaddr 192.168.40.100, Windows Server 2003, IIS-6) from Visual Studio 2010 on my laptop (ipaddr 192.168.50.10, Windows 7, user XYZ\username, machine name L). I've read every MSDN article I can find, I've checked firewall settings, I unblocked port 135, I have the same user name and password on the two machines, I've tried running msvsmon.exe on R as a service and as an application (advertising itself as username@R), msvsmon has sufficient privileges, but I just cannot attach to any process on R. I can't even get a list of processes on R to show up. If I could pay someone to fix the problem I would, but I wouldn't pay a dime until I saw it working.

[Note: The IP addresses above are illustrative only, not the real values.]

Answer 1

You need to be authenticate on the same domain (or at least there be a trust relationship between the two) as the remote machine. Is the local machine attached to the domain on the other side of the VPN? If not, you cannot debug managed code using remote debugging.