write a window software to acquire research data

We need simple software to operate the titrator at the desired rate ( we have the coding from a previous software already), after delivery of the titrate, the system will read the pH meter until a constant reading is obtained, and it will then continue to titrate. The connections from the computer and titrator and pH meter are serial. The data will be saved in a text file. The data will be displayed as volume of the titrate and the mv reading from the pH meter. You can use any software package (MS Visual studio, Labview, Labwindow, etc) to achieve it.