File is read only, while sharing

Searched for it here and on google, dint find anything that worked..

Not sure if its in right section. If not correct me..

My problem is, when i playing around on the editor and want to share my creations with a friend, i save it as user mission make a zip out of it and share it, so he can use it in editor. Now when he try's to open that map in arma2, It says:

File is read only

He saving it in wrong place? I'm saving it as wrong type? i use, user mission(thats for use in editor right?)

We both use the same Addons with server key.

Example.. i saved a map called, Insurgents Base Assault, as user mission

Go to ArmA2 Other Profile map, missions, make a zip of Insurgents Base Assault.afghan_village. and share it.

Please some1 explain to me how to save it right so he can use it in editor.

Big Thanks So far.