NetBackup Client 7.5 install fails on Windows Server 2012 R2

Gets almost all the way through the progress bar then errors and rolls the whole lot back again.

I get an Application Error in the event log:

Faulting application name: MsiExec.exe, version: 5.0.9600.16384, time stamp: 0x5215f49e
Faulting module name: MSVCR100.dll, version: 10.0.40219.1, time stamp: 0x4d5f034a
Exception code: 0xc0000005
Fault offset: 0x000000000005acc7
Faulting process id: 0xe68
Faulting application start time: 0x01cf559c81b985e7
Faulting application path: C:\Windows\System32\MsiExec.exe
Faulting module path: C:\Windows\System32\MSVCR100.dll
Report Id: 11a7770d-c190-11e3-80bf-001aa0241186
Faulting package full name:
Faulting package-relative application ID:

and the following in the install log at around the same time:

 04-11-2014,16:43:47 : Entering CallAtPostInstallDll custom action.
 04-11-2014,16:43:48 : CustomAction Commit_CallAtPostInstallDll returned actual error code 1603 (note this may not be 100% accurate if translation happened inside sandbox)
 04-11-2014,16:43:48 : Action 16:43:48: Rollback. Rolling back action:
 04-11-2014,16:43:48 : Registering NetBackup with LiveUpdate

I've tried installing the latest (that I can find) C++ 2010 runtime. Tried copying the install files locally. Tried rebooting.

I'm running the install via a remote desktop session as an administrator.

Any suggestions? Thanks in advance!