How can made safer application that is not detect by antivirus?

[C++ Programming]

Hi all,

I m working on MFC applications,i have some things by which my application detect by antivirus.
List of actions are mention as follows that is detected by antivirus.

1. Key hook of keyboad.
2. Sending an email by my application.
3. Use Shell execute to run another application.
4. Command use to put an application in startUp.
...

please tell me how can i do all these work without detecting by antivirus.

Please help me for this.

thanks in advance.

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