Problem With Creating Directory By SQL Server On A Remote Shared Folder

Dear all,

I now have 2 server, say serverA and serverB. ServerA has a SQL server and I am using a command in the SQL server to access the serverB. The command is:

declare @command varchar(500)
set @command = 'mkdir ' + '"\serverBabckevin_wong123"
exit'
exec master.dbo.XYRunProc
'cmd.exe',
'c:',
@command

where abc is a shared folder in serverB which can be accessed by serverA. However the output of this execution is "c:> mkdir "\serverBabckevin_wong123" Access is denied". It is possible to do this in command prompt. Does anyone know what's the problem of this?

Thank you very much!!

Kevin