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Point understood, thank you. 100 bytes compared to 4.

Thanks for the explanations. I kinda see what your are taking about. I guess I need to do some experimental evaluations to make it more clear to me. I had always thought an Char array was the same as...

I have a question as to why the two shown func args are different? See comments (yes I am novice)

struct MyFileClass
{
.....other code

void MyFileOut( TCHAR* pS, DWORD pVar)
{
...