expression evaluator (string calculator) in visual basic

The following Visual Basic project contains the source code and Visual Basic examples used for expression evaluator (string calculator). I think many of you have asked for such a thing. You give it a string like "2+3^(5-3*SIN(18-5^2))/SQR(2)+LOG(8)" .. etc. And it returns the result of calculation.
The source code and files included in this project are listed in the project files section, please make sure whether the listed source code meet your needs there.

Project Files: 

File NameSize
Eval.exe 40960
Eval.vbp 820
Eval.vbw 119
Evaluator.cls 19275
flip.wav 2426
frmTestEval.frm 1949
frmTestEval.frx 1090
pff.wav 45516
PlayWave.bas 2400
Readme.txt 2074