Error Logging into Plesk Control Panel

[FelipeBCJ]

I'm trying to logging into Plesk and this error appears:

DefPackageMng() constructor failed: defpackagemng failed: The command prompt has been disabled by your administrator.
Press any key to continue . . .
---------------------- Debug Info -------------------------------
0: C:\Program Files\SWsoft\Plesk\admin\plib\common_func.php3:153
psaerror(string 'DefPackageMng() constructor failed: defpackagemng failed: The command prompt has been disabled by your administrator.
Press any key to continue . . .')
1: C:\Program Files\SWsoft\Plesk\admin\plib\class.DefPackageMng.php:19
defpackagemngMaker()
2: C:\Program Files\SWsoft\Plesk\admin\plib\class.ActionLog.php:457
ActionLog->submit()
3: C:\Program Files\SWsoft\Plesk\admin\plib\cmd_loginup.php:248
createSessionAdmin(string 'admin', string '********', boolean false)
4: C:\Program Files\SWsoft\Plesk\admin\plib\cmd_loginup.php:122
createSession(string 'admin', string '********')
5: C:\Program Files\SWsoft\Plesk\admin\htdocs\login_up.php3:16

I've already tried these options and the problem persists:
http://kb.odin.com/1160
http://kb.odin.com/en/1427
http://forum.parallels.com/showthread.php?t=74114&highlight=command+prompt+disabled+administrator.

The configurations, permissions, environment variables and registries are all fine but i still can't connect to the Plesk Control Panel.