SSIS script vb.net code

Hi there

I am new to SSIS  but I have an EXE written in Vb.net  I could have written it in C# but this is a vb shop anyway is there an Easy way to copy and paste my vb code into an SSIS package?

summary of what exe does .... it calls a stored procedure, puts data in a dataset and then writes the data to a file but because the file is for an old main frame with everything being positional or has to be padded left or padded right with certain characters it is much much easier to do this in vb than SQL

Thanks