Agent installer shows error message, 'RunDLL: There was a problem starting...'

May 05, 2023 07:30

Issue

Sometime you might see an error message,

RundDLL There was a problem starting <file> <file> is not a valid Win32 application.

Where <file> is the path and file name. For example, C:\windows\Installer\MSI8421.tmp. In most cases, this happens with the Silent Agent with a MSI installer:

Causes

You might see this message because Windows firewall is blocking a file.

Solutions

Disable Windows firewall before installing the agent.