Work on network with vb.net project, Two users

Hi
I am developing a vb.net project with two coders. I want both users to develop same project. How can I do these.

If I am sharing mydocument folder on my pc. Others user is not able to add forms to project but he can change the code in forms which i have added.

When other user adds a form it gives error as "drive is write protected.
I have given rights as everyone and fullcontroll.

Waiting for Anticipation

Your best solution would be to use Visual SourceSafe version control software. Its like a library where you check in and out code so developers can work on the same project together, each working on their own module or class, etc.

As RobDog has suggested, you will have to use Version Control Software that will help you in tracking the changes and sharing the code across multiple team members. There are lot of tools available and some of them are even Free. Here is a list of some of the tools that can be used for Version Control, although some of them will not support VS IDE but they can still be used:
WinCVS
MKS
VSS
and I am not sure if Team Foundation Server has been released by MS. You could use TFS also.