How to see if a file exists with a different extension

Hello, all! I am trying to write a program that will check to see if a file with a different extension exists for the file that was inputed. That was really confusing, so how a bout an example? Lets say the user inputed (from a command prompt in win32):
myprog data.txt

I want my program to check an see if a file with the name data.dat exists and if it does pass both names as an argument to another program. For example:
otherprog data.txt data.dat

Is there any easy way to go about this? Keep in mind that I am relatively new to programming, so try to keep it simple :) . Thanks!
-PCJason

[email protected]

You can enumerate files with different extensions using _findfirst()/_findnext() in io.h or FindFirstFile()/FindNextFile() in windows.h using wildwards. If you need an example of how these functions work do a search on their names.

Since you are new to CProgramming.com, may I suggest some things for you? First try to do it on your own, some people get very agrivated with the type of question you asked. Second post some code that you are having problems with, this will show that you are trying to do it yourself. Third do some searches.

Search:
Google
MSDN
CProgrmming

You will get answers from at least one of those URL's.

SOrry about that, I guess I should have gotten used to the attitude around here:o . Anyway, I have been using some resources off of the net, and I think I am making progress, unfortunately, it won't compile. I will continue working on it, but I may post the source if I still can't get it. Thanks for your time
-PCJason

[email protected]