I have an HTML-Form that does not pass any variables but the button that was pressed.
From time to time it occurs, that my server says "Server Apllication Error" after klicking the button.

I run PHP4 as ISAPI-Module and I am aware that it is not qualified as "stable", but I just wanted to let you know about this bug, and that the ISAPI-Modul works just fine for me in most cases (DB-access via ODBC, form-handling, etc.)

Keep up the good work.

If I cant do anything to help you debug that problem let me know.

P.S.: The script called by the HTML-Form looks something like this:
<?
if(strlen($cancel) != 0)
{
        header("Location: URL1");
        exit;
}

if(strlen($ok) != 0)
{
        header("Location: URL2");
        exit;
}
?>