I just tried to create the function and got all the errors below.

Msg 102, Level 15, State 1, Procedure usp_lsping, Line 24

Incorrect syntax near '?'.

Msg 102, Level 15, State 1, Procedure usp_lsping, Line 25

Incorrect syntax near '?'.

Msg 102, Level 15, State 1, Procedure usp_lsping, Line 31

Incorrect syntax near '?'.

Msg 102, Level 15, State 1, Procedure usp_lsping, Line 32

Incorrect syntax near '?'.

Msg 102, Level 15, State 1, Procedure usp_lsping, Line 36

Incorrect syntax near '?'.

Msg 102, Level 15, State 1, Procedure usp_lsping, Line 37

Incorrect syntax near '?'.

Msg 102, Level 15, State 1, Procedure usp_lsping, Line 38

Incorrect syntax near '?'.

Msg 102, Level 15, State 1, Procedure usp_lsping, Line 39

Incorrect syntax near '?'.

Msg 102, Level 15, State 1, Procedure usp_lsping, Line 40

Incorrect syntax near '?'.

Msg 102, Level 15, State 1, Procedure usp_lsping, Line 41

Incorrect syntax near '?'.

Msg 102, Level 15, State 1, Procedure usp_lsping, Line 42

Incorrect syntax near '?'.

Msg 102, Level 15, State 1, Procedure usp_lsping, Line 44

Incorrect syntax near '?'.

Msg 137, Level 15, State 1, Procedure usp_lsping, Line 44

Must declare the scalar variable "@Clr".

Msg 102, Level 15, State 1, Procedure usp_lsping, Line 46

Incorrect syntax near '?'.

Msg 102, Level 15, State 1, Procedure usp_lsping, Line 47

Incorrect syntax near '?'.

Msg 137, Level 15, State 1, Procedure usp_lsping, Line 47

Must declare the scalar variable "@msg".

Msg 137, Level 15, State 2, Procedure usp_lsping, Line 48

Must declare the scalar variable "@msg".

Msg 102, Level 15, State 1, Procedure usp_lsping, Line 50

Incorrect syntax near '?'.

Msg 102, Level 15, State 1, Procedure usp_lsping, Line 52

Incorrect syntax near '?'.

Msg 102, Level 15, State 1, Procedure usp_lsping, Line 55

Incorrect syntax near '?'.

Msg 102, Level 15, State 1, Procedure usp_lsping, Line 58

Incorrect syntax near '?'.

Msg 102, Level 15, State 1, Procedure usp_lsping, Line 59

Incorrect syntax near '?'.

Msg 137, Level 15, State 2, Procedure usp_lsping, Line 61

Must declare the scalar variable "@msg".

Msg 102, Level 15, State 1, Procedure usp_lsping, Line 63

Incorrect syntax near '?'.

Msg 137, Level 15, State 2, Procedure usp_lsping, Line 64

Must declare the scalar variable "@msg".

Msg 102, Level 15, State 1, Procedure usp_lsping, Line 66

Incorrect syntax near '?'.

Msg 102, Level 15, State 1, Procedure usp_lsping, Line 72

Incorrect syntax near '?'.

Msg 102, Level 15, State 1, Procedure usp_lsping, Line 75

Incorrect syntax near '?'.

Msg 102, Level 15, State 1, Procedure usp_lsping, Line 91

Incorrect syntax near 'off'.