Some actions fail in Plesk UI: Unable to start C:\Program Files (x86)\Plesk\admin\bin\filemng

Symptoms

• Uploading a certificate via Domains > example.com > SSL/TLS Certificates or opening Domains > example.com > File Manager fails with:

  PLESK_ERROR: filemng failed: plesk_exec_with_response("C:\Program Files (x86)\Plesk\admin\bin\filemng" root --temp-file "--destination=C:\Program Files (x86)\Plesk\tmp") failed: Unable to execute plesk_exec_with_response: The operation completed successfully. (Error code 0) at Unable to start ("C:\Program Files (x86)\Plesk\admin\bin\filemng" root --temp-file "--destination=C:\Program Files (x86)\Plesk\tmp")

• Creating a new domain/subscription fails:

  PLESK_ERROR: phpcfg failed: plesk_exec_with_response(D:\Plesk\admin\bin\phpcfg --set-site-php-ini-settings "--path=D:\Inetpub\vhosts\example.com\httpdocs") failed: Unable to execute plesk_exec_with_response: The operation completed successfully. (Error code 0) at Unable to start (D:\Plesk\admin\bin\phpcfg --set-site-php-ini-settings "--path=D:\Inetpub\vhosts\example.com\httpdocs")<br> at (PipeServer::ServerThread::ProcessClient::executeChildProcess line 300)<br> at Plesk impersonation(PipeServer::ServerThread::simpleRunAs line 689)<br> at (RunTime::PipeClient::readMessage line 117)<br> at Unable to call readMessage()(RunTime::PipeClient::readMessage line 122)<br> at (zif_plesk_exec_with_response line 1148)

Cause

The binary from the error message - %plesk_bin%filemng.exe or %plesk_bin%phpcfg.exe - is missing or corrupted.

Resolution

1. Log in to Plesk.

2. Go to Tools & Settings > Updates and install the latest updates. The binary %plesk_bin%filemng.exe will be reinstalled.

3. If does not help or if there are no updates availalbe, unpack the package plesk-backend.msi from C:\ParallelsInstaller\...\PLESK-WIN_XX.X.XX\dist-windows\ or C:\ProgramData\Plesk\Installer\...\PLESK-WIN_XX.X.XX\dist-windows\ and put the binary from it to %plesk_bin%, for example:

   C:\> msiexec /a C:\ProgramData\Plesk\Installer\cache\pool\release\PLESK-WIN_18.0.38_7167\dist-windows\plesk-backend.msi /qb TARGETDIR=C:\tempMSI

   Note: the package with the binary will be unpacked to C:\tempMSI