NetBackup Supportability

Have you tried

You can find all NetBackup Compatibility lists over here:   https://www.veritas.com/support/en_US/article.000033647

Bare Metal Restore (BMR) for virtual environments is covered in this doc: 
Statement of Support for NetBackup 7.x and 8.x in a Virtual Environment:    http://www.veritas.com/docs/000006177 

Bare Metal Restore (BMR) for physical environments is covered in the Software Compatibility List (SCL) for each relevant version (see 1st URL above) 

As can be seen in the same SCLs, support for  Windows 2000 up to Windows 2013 is not possible.
The reason for that is because Microsoft dropped support for these versions.
A 3rd-party vendor cannot be expected to develop new software for unsupported OS versions. 
Veritas always works with OS vendors when new versions are developed and tested. 

Exchange and SharePoint support is covered in Application/Database Agent Compatibility List.
Veritas calls 'brick-level' GRT.

Right off the bat, you aren't going to get support for Windows 2000, it was end of life almost a decade ago and Veritas has long since stopped supporting such an old OS.

You need to provide versions of the applications you are asking about.

7.7.x - https://www.veritas.com/content/support/en_US/doc/NB_77_DBSCL

8.x.x - https://www.veritas.com/content/support/en_US/doc/NB_80_DBSCL

For BMR: https://www.veritas.com/content/support/en_US/doc/NB_70_8

Edit from the Exchange admin guide for V8.0 - https://www.veritas.com/content/support/en_US/doc/ka6j00000000AoYAAU

When a backup uses Granular Recovery Technology (GRT), users can restore individual items directly from any full database backup. This type of backup can serve both kinds of recovery situations.

List of Sharepoint Guides per NBU Version - https://www.veritas.com/support/en_US/article.DOC5332

NBU V8 Sharepoint Guide - https://www.veritas.com/content/support/en_US/doc/ka6j00000000AoiAAE