I used code below in my own soft to Call Skype API:

"UINT g_uSkypeDiscover = ::RegisterWindowMessage("SkypeControlAPIDiscover");
if (!::SendMessage(HWND_BROADCAST, g_uSkypeDiscover, (WPARAM)m_hWnd, 0))
MessageBox("Skype API is not available.", "CSkypePadDlg::ConnectSkype()", MB_OK | MB_ICONERROR);"

But When I Update my soft and access Skype again, Skype popup a window"Another program wants to use Skype" "**WARNING!** A changed program is trying to access Skype!" , and the default choice for customer is "Do not allow this program to use Skype".
Can Skype offer some method to avoid this popup-window to show?
Appreciate your help!

Bealive me, i dont have much experience, but i bealive that Skype registers even the EXE size, and when that changes, it seems like is an app, that changed but kept its name, u know like an update or something, so skype must alert that, because someone could make a beautiful app, and u accep it, but then, with the same name, change it for a spy app, u know, if it didnt say anything and just saved the exe name, things would get messy....

i dont know man, i just try to understan that skype feature and came up with that,......and i really have no idea how to turn it off.....

blessings,

mEmE

Memevertical got it absolutely right. The reason why Skype asks this is to protect the user from anybody writing an application that could use his Skype connection to do something bad without the user knowing.

Currently there is no way to bypass this confirmation message.