I have downloaded the VS 2008 Pro trial version and I'm having problems 
installing it.Visual Studio installs OK but when I install the MSDN Library 
for VS2008 it stops with an error message
"Error 1330: A file that is required cannot be installed because the cabinet 
file d:\msdn\cab13.cab has an invalid digital signature. This may indicate 
that the cabinet file is corrupt".
I have downloaded the file twice but I'm still getting the same error.
Please help
Alan 
"Alan" <Alan...@treeo.com> wrote in message 
news:OtCvKIqP...@TK2MSFTNGP02.phx.gbl...
Anyway--after cab18.cab and cab23.cab had invalid digital signatures in my 
first download, I tried downloading the ISO image again; but this time, 
cab13.cab and cab15.cab were bad.  Then I realized that I could now piece 
together a working image from the two downloads.  (Luckily, the corrupted 
cabs in the two downloads were different from each other.)
Specifically, I used Daemon Tools to mount, in turn, each ISO image 
(cancelling Setup when it attempted its Autorun), and copied the files from 
each ISO image to a separate folder on the hard disk.  Then, I just replaced 
the cab files that had bad/invalid signatures in one folder with the good cab 
files from the other folder, and vice versa.  (Note:  this would also work 
using the XP Virtual CD-ROM Control Panel.)
The result was that I had two good (working) sets of files, albeit from two 
bad ISO images.  Setup ran from the repaired set of files successfully.
I guess that, with VS2008, we get the same "quality" of installations
that we did with SQL 2005 and VS2005 :(
I meet this problem too.
 I think there must be something wrong with microsoft's download
server , or why many people face the same problem?