Problem with OR operator

[Bert]

I have a macro that is to open only Word or Excel
documents. Anything else bypasses the code. If I test for
Word documents with :

If strExtension <> ".doc" Then GoTo NextLink

then the Word docs are processed, eveything else bypasses.
If I test for Word and Excel docs with:

If strExtension <> ".doc" Or strExtension <> ".xlw" Then
GoTo NextLink

everything bypasses the code. Why?

 

[Helmut Weber]

Hi Bert,
it is a matter of logic.

If strExtension <> ".doc" Or strExtension <> ".xlw" Then
GoTo NextLink

try
strExtension <> ".doc" and strExtension <> ".xlw"
---
If you use "or" any string would be unequal to
one (1!) of the two Extensions.

Greetings from Bavaria, Germany
Helmut Weber, MVP
"red.sys" & chr(64) & "t-online.de"
Word 2002, Windows 2000