So I've scoured the forums and net and can't work this out

I've set up a couple of sites on a linux server with no problems - setting the permissions is easy by just right clicking and changing to 777 or 666 etc... but on a windows server I have to do it through Plesk and I'm presented with a list of Groups and User names for which to adjust the permissions.
This is what I see;
Administrators
Plesk IIS User (IUSR_xlifecom)
Plesk IIS WP User (IWPD_110(xlifecom))
Plesk Domain User (xlifecom)
SYSTEM
FTP accounts (ftp_subaccounts)
But I can only edit these;
Plesk IIS User (IUSR_xlifecom)
Plesk IIS WP User (IWPD_110(xlifecom))
FTP accounts (ftp_subaccounts)
And these are the permissions options I'm given;
Full Control
Modify
Read & Execute
List Folder Contents
Read
Write
So I've tried checking Read & Execute, Read & Write for the directories that need to be set to 777 - I've tried this on all 3 groups above, but no matter what I do, I get these error messages on my install page;
Code: Select all
Warning: Smarty::include(C:\Inetpub\vhosts\xlife.com.au\httpdocs\tmp\templates_c\%%C4^C43^C43F3191%%installer_start.tpl.php) [smarty.include]: failed to open stream: No such file or directory in C:\Inetpub\vhosts\xlife.com.au\httpdocs\lib\smarty\Smarty.class.php on line 1276
Warning: Smarty::include() [function.include]: Failed opening 'C:\Inetpub\vhosts\xlife.com.au\httpdocs\tmp\templates_c\%%C4^C43^C43F3191%%installer_start.tpl.php' for inclusion (include_path='.;./includes;./pear') in C:\Inetpub\vhosts\xlife.com.au\httpdocs\lib\smarty\Smarty.class.php on line 1276
Warning: Smarty::include(C:\Inetpub\vhosts\xlife.com.au\httpdocs\tmp\templates_c\%%B6^B63^B635D704%%pagestart.tpl.php) [smarty.include]: failed to open stream: No such file or directory in C:\Inetpub\vhosts\xlife.com.au\httpdocs\lib\smarty\Smarty.class.php on line 1276
Warning: Smarty::include() [function.include]: Failed opening 'C:\Inetpub\vhosts\xlife.com.au\httpdocs\tmp\templates_c\%%B6^B63^B635D704%%pagestart.tpl.php' for inclusion (include_path='.;./includes;./pear') in C:\Inetpub\vhosts\xlife.com.au\httpdocs\lib\smarty\Smarty.class.php on line 1276
Warning: Smarty::include(C:\Inetpub\vhosts\xlife.com.au\httpdocs\tmp\templates_c\%%18^181^181FA688%%installer_end.tpl.php) [smarty.include]: failed to open stream: No such file or directory in C:\Inetpub\vhosts\xlife.com.au\httpdocs\lib\smarty\Smarty.class.php on line 1276
Warning: Smarty::include() [function.include]: Failed opening 'C:\Inetpub\vhosts\xlife.com.au\httpdocs\tmp\templates_c\%%18^181^181FA688%%installer_end.tpl.php' for inclusion (include_path='.;./includes;./pear') in C:\Inetpub\vhosts\xlife.com.au\httpdocs\lib\smarty\Smarty.class.php on line 1276
Have been going round in circles for 2 days!! Please help me set the permissions correctly if you know how.
Many thanks!