How to give shared network file path in the custom vb script?

Since the script is always executed on the PRTG side (either the core server or the remote probe), you'll have to pass the device name as parameter in the sensor configuration and insert it into the path:

set File= "\\<server>\mis$\Program Files\GIA NM General\General Image Archiver\2015.11.29_ERROR.log"

...or you hardcode it into the script :)

Thank you for your quick reply but it still doesn't work. I have hard coded the File path in the script. Please see below .

@echo off
setlocal
set File= "\\roenma003a\mis$\Program Files\GIA NM General\General Image Archiver\2015.11.29_ERROR.log"
set Interval=10
for %%a in ("%File%") do set FileName=%%~nxa
set OldFileTime=X
:Loop
for %%a in ("%File%") do set NewFileTime=%%~ta

ping.exe -n %Interval% localhost >NUL
if not "%OldFileTime%"=="%NewFileTime%" (
	set OldFileTime=%NewFileTime%
	goto :Loop
)

echo fail
goto Loop

I am running this script in PRTG and I am always getting the Time Out Code Error.

When I run locally this is working perfectly but PRTG I get time out. Looks like file path is not finding.

Could it be a permission problem? Can you try to let the PRTG Probe Service run under your user account to check that (open up services.msc, right click the PRTG Probe Service, open properties and configure it in the account tab)? Or do you need any other credentials in order to access the share?

What are you actually trying to monitor? Maybe there's a simpler solution?

There is no permission issue. I checked it. All I am trying to do is check the log file updates for every minutes.

What exactly are you checking in the script? Maybe I can come up with a PowerShell counterpart; it's usually more versatile when it comes to network file operations.