Well I have no idea which IDE you are using but if you are using Visual Studio .NET 2003, .NET 2001, or Visual Studio C++ that installshield installer comes bundled with it.
Anyway, here are a few related articles from codeproject. I guess most of them could be easily modified to fit your demands.
http://www.codeproject.com/tips/installshield.asp
http://www.codeproject.com/dotnet/WebpartInstaller.asp
http://www.codeproject.com/netcf/Pac...ployingPPC.asp
I hope some of them can be of help...
Otherwise you can also take a look in the forums over at
www.cprogramming.com or ask around at codeproject.
www.programmersheaven.com is also a great place to go.