Clash check macro

Dear Sir

please explain how to use this macro......
I have changed M:\ to C:\.....and in my case a window is popping us titles as ..
What To Add
CHECK= Your Piping Zone
OBSTRUCTION= Add Your Site And
Other Things You Might Have Clash With

..
I don't know how to proceed further.....


Thanks in advance..

- - - Updated - - -

Dear Sir

please explain how to use this macro......
I have changed M:\ to C:\.....and in my case a window is popping us titles as ..
What To Add
CHECK= Your Piping Zone
OBSTRUCTION= Add Your Site And
Other Things You Might Have Clash With

..
I don't know how to proceed further.....


Thanks in advance..

- - - Updated - - -