I Performed the update to version 2.0.3 netxms. And I used the update of the agents (Windows) centrally through the NPI.
Was performed successfully 70% both x86 as x64 Windows versions. However in the other 30% error occurred in the deploy.

In all cases the error was equal, the older version of the agent (2.0.2) has not been removed.
When you try to remove the agent manually (log in the server) error message appeared.
To install the new version was necessary to restart the servers after the process the 2.0.3 version was installed successfully.

Below is the image as well as the errors encountered in application logs.
The purpose of the post is trying to help so that the problem be identified:)

Anyway the success rate was very high which facilitated the upgrade process.  ;D ;D ;D 

Error from image:
Faulting application nxagentd.exe, version 0.0.0.0, time stamp 0x56a7b06b, faulting module libnxdb.dll!?
DBSetDebugPrintCallback@@YAXP6, version 6.0.6002.23154, time stamp 0x51da29f7, exception code 0xc0000139,
fault offset 0x00009f5d, process id 0xa80, application start time 0x01d18c32df60f7e0.

Log application:
Activation context generation failed for "C:\NetXMS\bin\nxagentd.exe".
Dependent Assembly Microsoft.VC80.CRT,processorArchitecture="x86",publicKeyToken="1fc8b3b9a1e18e3b",type="win32",
version="8.0.50727.6195" could not be found. Please use sxstrace.exe for detailed diagnosis.

Tks,