Private memory of Univagent.exe process increases each time when Exchange Agent backup runs, and it doesn't decrease until the service is recycled.

Note:
For r17.5sp1, this fix replaces T00001897.
And this fix resolves the following problem of T00001897.

After applying T00001897, this exception is recorded to the application event log everytime when running Exchange Agent database level backup : 
Application: EdbStat.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.AccessViolationException

(1) Unzip P00001972.zip
(2) Run P00001972.exe