Way to access a C program from a VB.net application

Hi,
We are working on a .NET project (VB.net). We have a situation in our project where we need to access a C code from our .NET application. We are looking for some help on how to do that. We need to access the C code from the VB.net programs. We are looking for some help on creating a COM component from VC++ by accessing the C code. We do have some theoretical knowledge in this regard, but not able to do it. Some samples would be a great help in this regard.

Thanks in advance
Oursmp

more specific? search the forums? post in the right forum? "we" as in the voices or the turtle in your pocket? errrrrrr?