Disable Save As but not Save in Word 2010 - vba

Question

I am looking to disable Save As in a Word 2010 file but still allow save. In other words I want users to be able to update the existing file but not create copies. I realize that this is impossible to truly do for people who know workarounds but for the general user I have successfully done this in Excel but am pretty new to word VBA.
When I add the following to a brand new document everything works as intended:
Sub FileSaveAs()
MsgBox "Copies of this file cannot be created. Please save changes in the original document." & _
, , "Copy Cannot be Created"
End Sub
My document has other macros for various command buttons but none of them involve saving the document (under original name or save as). There is also a macro running on open but that is 1 line going to a bookmark. When I try to "save as" in this document I get the message box as intended. When I try to "save" though things get strange: I get the save as dialogue (problem 1). Whether I try to save either under same name or other name the dialogue behaves as it normally would except it doesn't save and the dialogue box opens again automatically essentially creating an endless loop until I hit cancel (problem 2). I also intermittently get a "disk is full" warning pop-up after trying to save which I can dismiss but appears a few minutes later as long as he file is open (perhaps related to autosave?)
Since the macro works in the test file I assumed this strange behavior must be something elsewhere in my code but my document with the other macros saves normally as long as I don't include the save as code above so now I'm totally confused. Before I put up the rest of my code which is lengthy and for the reasons stated above I would not think impact things, I figured I'd ask this:
1. Is there any place other than my other command button macros that could be causing this behavior?
2. Is there a better method people recommend to achieve my ultimate goal of disabling save as but not save?
Thanks in advance for any advice you can provide.

Answer 1

The Word application has a DocumentBeforeSave event. To enable application events I suggest to create a class module by the name of ThisApplication and paste the following code into it.
Option Explicit
Private WithEvents App As Application
Private Sub Class_Initialize()
Set App = Word.Application
End Sub
Private Sub App_DocumentBeforeSave(ByVal Doc As Document, _
SaveAsUI As Boolean, _
Cancel As Boolean)
If SaveAsUI Then
MsgBox "Please always use the ""Save"" command" & vbCr & _
"to save this file.", _
vbExclamation, "SaveAs is not allowed"
Cancel = True
End If
End Sub
Add the following code to your ThisDocument module.
Dim WdApp As ThisApplication
Private Sub Document_Open()
Set WdApp = New ThisApplication
End Sub
You may add the Set App = ... line to your existing Document_Open procedure. After the WdApp variable has been initialised all application events will be received by the ThisApplication class where the DocumentBeforeSave event procedure is programmed not to allow SaveAs.
Of course, this is a blanket refusal for all documents. Therefore you may wish to add code to the procedure to limit the restriction to certain documents only. The proc receives the entire document object with all its properties, including Name, Path, FullName and built-in as well as custom properties. You can identify the files you wish to be affected by any of these.
Note that the WdApp variable will be erased in case of a program crash. If this happens the application events will no longer fire. It may be useful to know that application events occur before document events. This is if you wish to use the application's DocumentOpen event as well as or instead of the document's Document_Open event.