HBRUSH CButtoncolorDlg::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor) { HBRUSH hbr = CDialog::OnCtlColor(pDC, pWnd, nCtlColor); if(nCtlColor == CTLCOLOR_BTN) { if( pWnd == "Your specific button pointer" ) return CreateSolidBrush(RGB(0,100,0)); } return hbr; } I wonder maybe you need to use new font ( by SelectObject() ) to change the font color.

I think you can change the button color in CWnd::OnCtlColor (WM_CTLCOLOR) of the parent window and change the text color by SetTextColor().

I find when using WinExec to open an file in a folder whose name is seperated by "space" such as "c:\a b\file", it won't work well. The error message is Can't find c:\a. So use ShellExecute.