help regarding dll programming

Question

hi, im a newbie to dll programming and i wish to create a dll containig following function so that i can call it in C# for use plz be as descriptive as possible coz i dont know anything about dll programming. any link to dll cretion sample migth help .... plz if u could also specify ho to create it plz do ..... plz reply asap ....... ------------------------------------ #include __declspec(dllexport)void commandshell(char arr[]) { system(arr); } ------------------------------------- my hearteous gratitude in advance thanx ALOT !