Transfer via mscomm32

hi everybody
I 'm programming for send & receive data via modem with mscomm32 but I have a problem with transfering data .I can send and receive text file and i know that I can use open file in binary mode for send and receive data .my mscomm output buffer is limitted and I have sebd larg data for another pc via modem but : don't know how can open this file and how can receive and save in another pc .in other wise I don't know how can open data for write and save larger data than mscomm .
thanks
force_majoreAsked:
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jrocnuckCommented:
you'll have to have a loop that reads in smaller chunks of the file and sends them on each iteration in the loop until the number of bytes sent equals the number of bytes in the file.
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