Combining Text Files

I simply need a fast (preferrably C/C++) executable that takes in 3 parameters and appends files efficiently. The files will be like Line1 Line2 Line3 Line1 Line2 Line3 etc but only with a few each, I want it to output one master list that has 3 lines down, a space, then 3 lines down... until the end. It should be something like: [login to view URL] [login to view URL] C:\Path *.txt where [login to view URL] is what they all write to, C:\Path is the path where the files are and where [login to view URL] should be wrote, and the last parameter being the type of file to append to the master file. Actually if it's possible, I'd rather have 3 command arguments, one of which being which directory/path to write to. I wrote this myself in Basic, but need C++ speed. THE LAST requirement is it should only use buffers the size of the file. So use New and Delete to resize the buffer, for efficiency. Thanks. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Installation package that will install the software (in ready-to-run condition) on the platform(s) specified in this bid request. 3) Complete ownership and distribution copyrights to all work purchased. ## Platform Win9x/ME/2k/XP