Server path in the loadscript command

I'm working with DraftSight 2017 x64 SP3 Premium.
I need help to use the "_loadscript" command in a customized command.
When I use the command with the local disk path (for example _loadscript;D:\\A.scr;) the script run.
But, if I use the sever path as address of the script

_loadscript;\\\\serverpath\\A.scr;

the program answer with an error.

The message is:
_LOADSCRIPT
\\\\serverpath\\A.scr

Where is the problem? Syntax or I can not load the script from server?
Any suggestions would be greatly appreciated.
Please let me know if you need any additional information to understand the issue.

Thanks for looking!