vb系统自动更新源代码，并自动更新程序。

简介：
The Visual Basic application automatically updates the source code, and it enforces automatic upgrades. Specifically, the `Private Sub Form_KeyPress(KeyAscii As Integer)` subroutine is unloaded when a key press occurs. Additionally, the `Private Sub Form_Load()` subroutine sets the caption of the `frmSplash` form to 演示程序 Version followed by the major, minor, and revision numbers of the application. The `lblVersion` labels caption is also updated to display 版本 along with the major, minor, and revision numbers. Finally, the `lblProductName` label shows the applications title. The `Private Sub Frame1_Click()` subroutine then unloads the form.