[COLOR=Black]I am working on a project that decrypts some text encodes it to base 64 and does the reverse to obtain back the original text. I have used some ready implemented algorithms I found.. I have edited these accordingly to meet my needs and when testing encrypting /decrypting and encoding/decoding alone they all work with no problems.. but when I put all together it complies but when I run it it gives me the following debug error

"Debug Error !
Program : TradNSP.EXE
Module :
File : i386\chkesp.c
Line : 42
The value of ESP was not properly saved across a function call. This is usually a result of calling a function declared with one calling convention with a function pointer declared with a different calling convention."

I have attached the files I am using.. I just cant figure out why it is happening.

Thanks