Resolution
By default BESUserAdminClient tool must be installed to location where PSA MPS Providers are installed (C:\Program Files\SWSoft\PEM\MPF Providers)If you want to install BESUserAdminClient tool to different location you should create properly registry value (C:\BESTools, for example):
Copy the following text and paste to the new file setBESToolsPath.reg.
| REGEDIT4 [HKEY_LOCAL_MACHINE\SOFTWARE\SWSoft\PEM\Providers] "BESToolsPath"="C:\\BESTools\\" |
Save the file setBESToolsPath.reg and execute it from the Explorer to apply registry changes.