If NOT?

I am trying to do an if not against a string.  I have never gotten this
to work correctly and have done cheap little work arounds but thought I
might see how to properly do this.  Here is the scenario.

 

I have a string value:  $NETCHECK = "NO"

 

Prior to performing a task I want to make sure this is NOT set to NO.
So I wrote a quickie test script like this:

$NETCHECK = "No"

If $NETCHECK NOT = "Yes" Then

            MsgBox(0,"test","Yes")

Else

            MsgBox(0,"test","No")

EndIf 

 

It does not respond properly.  I have tried the following variations:

If NOT $NETCHECK = "Yes" Then

If NOT $NETCHECK "Yes" Then

If $NETCHECK NOT "Yes" Then

 

None of these return properly.  In the past I would have just done this

If $NETCHECK = "No" Then

Else

            MsgBox(0,"test","No")

EndIf 

 

I also considered doing this:

If NOT STRINGINSTR($NETCHECK,"no") Then

            MsgBox(0,"test","No")

EndIf 

 

I was just hoping for a cleaner/more efficient way of doing it.

 

Thanks in advance.

 

 



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