I'm upgrading all those older clients from 3.4 to 5.1 MP4 and I killed
an application.  Turns out that removing the 3.4 client, installing 5.1
and then the MP4 patch somehow unregistered the following php library -
librnwphp.7.0.1.5.dll!  We did a comparison of development and
production and in one case found this file had actually been removed
somehow.  I'm not blaming this on Netbackup, but its undeniable that
after my installing NBU 5.1 and then patching to MP4 that this dll was
then unregistered causing an app to fail.  Anyone else ever see anything
similar?  I'm a little hesitant to continue with the 60 client's I've
got left to upgrade with this kind of potential issue.

Then again, it could just be a fluke.  You know all those crazy web
admin guys. =P

-Jonathan