Thank you Friends it works.... Thanx TAKE CARE

You have given me a very big Hint but i didnt get sorry... If you can specify some details then it would be helpful for me to solve the problem.. awating reply Thanx TAKE CARE

Put in it stdafx.h. Call it whenever you want to change the default button. Kuphryn

sorry, I wasn't careful enough when reading, I understood you wanted to collapse your treectrl :-O To avoid it to collapse, do this: void CTreeDialog::OnItemexpandingTreectrl(NMHDR* pNMHDR, LRESULT* pResult) { NM_TREEVIEW* pNMTreeView = (NM_TREEVIEW*)pNMHDR; *pResult = (pNMTreeView->action == TVE_COLLAPSE); } Every gun that is made, every warship launched, every rocket fired, signifies in the final sense a theft from those who hunger and are not fed, those who are cold and are not clothed - Dwight D. Eisenhower

Yes checked it but That just makes the button in a click state and the problem still persist Thanx TAKE CARE

Yes my dear friend u r right but We cant see the Tree ctrl in a BrowseDlg box how acn we change the properties of TreeCtrl cause The Browse dialogBox is a commonDlg control and not the one which we have designed by myself Thanx TAKE CARE

Regardless, what is its return value?

HH_WINTYPE WinType ; memset(&WinType,0,sizeof(WinType)); WinType.cbStruct = sizeof(WinType); //fill the other members if required // Specify where the window should be RECT wndPos ; wndPos.top = 20; wndPos.left = 10; wndPos.right = 620; wndPos.bottom = 410; WinType.rcWindowPos = wndPos; // Create the window HtmlHelp(0,"hh4mfc.chm",HH_SET_WIN_TYPE,(DWORD)&WinType) ; Hope this helps. Melwyn

siid wrote: The application is working fine i mean the work which it should be doing but the progressbar doesnt move ahead. Are you saying that the work continues as normal, but that the progress bar just stops?

Call GetVersionEx() and look at the szCSDVersion member of the OSVERSIONINFO struct. It will be set to "Service Pack n" --Mike-- "I'm working really, really fast at the moment, so a 3 minute outage becomes, due to time dilation, a 5 minute outage." -- Chris Maunder, relativistic system administrator Ericahist | Homepage | RightClick-Encrypt | 1ClickPicGrabber

Something like this: CString sOS; OSVERSIONINFO OSversion = {0}; OSversion.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); ::GetVersionEx(&OSversion); switch (OSversion.dwPlatformId) { case VER\_PLATFORM\_WIN32s: sOS.Format(\_T("Windows %d.%d"),OSversion.dwMajorVersion,OSversion.dwMinorVersion); break; case VER\_PLATFORM\_WIN32\_WINDOWS: if (OSversion.dwMinorVersion == 0) { sOS=\_T("Windows 95"); } else { if (OSversion.dwMinorVersion == 10) { sOS=\_T("Windows 98"); } else { if (OSversion.dwMinorVersion == 90) { sOS=\_T("Windows ME"); } } } break; case VER\_PLATFORM\_WIN32\_NT: if (OSversion.dwMajorVersion == 5 && OSversion.dwMinorVersion == 0) { sOS.Format(\_T("Windows 2000 with %s"),OSversion.szCSDVersion); } else { if (OSversion.dwMajorVersion == 5 && OSversion.dwMinorVersion == 1) { sOS.Format(\_T("Windows XP %s"),OSversion.szCSDVersion); } else { if (OSversion.dwMajorVersion <= 4) { sOS.Format(\_T("Windows NT %d.%d with %s"),OSversion.dwMajorVersion, OSversion.dwMinorVersion,OSversion.szCSDVersion); } else { // for unknown windows/newest windows version sOS.Format(\_T(Windows NT Unknown %d.%d with %s)),OSversion.dwMajorVersion, OSversion.dwMinorVersion); } } } I prefer to wear gloves when using it, but that's merely a matter of personal hygiene [Roger Wright on VB] Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning. [Rich Cook]