PHP version of SpellerPages: $textinputs not being populated

Warning: Invalid argument supplied for foreach() in E:\MWEB\wwwroot\MyWebsite\fckeditor\editor\dialog\fck_spellerpages\spellerpages\server-scripts\spellchecker.php on line 25 
 
Warning: shell_exec() [<a href='function.shell-exec'>function.shell-exec</a>]: Unable to execute '"C:\Program Files\Aspell\bin\aspell.exe" -a --lang=en_US --encoding=utf-8 -H --rem-sgml-check=alt < E:\TEMP\aspCB8.tmp 2>&1' in E:\MWEB\wwwroot\MyWebsite\fckeditor\editor\dialog\fck_spellerpages\spellerpages\server-scripts\spellchecker.php on line 98 
error = 'System error: Aspell program execution failed (`"C:\Program Files\Aspell\bin\aspell.exe" -a --lang=en_US --encoding=utf-8 -H --rem-sgml-check=alt < E:\TEMP\aspCB8.tmp 2>&1`)';