Removing / hiding the "workspace" option from Calendar

Currently, I have disabled the "Workspace" check box from all Calendar events within SharePoint. I did this by doing the following:

• On the server, navigate to C:\Program Files\Common Files\Microsoft Shared\web server extensions\12\TEMPLATE\FEATURES\EventsList\Events\
• Create a backup of schema.xml (I backed it up as schema.xml.backup)
• Open schema.xml and search for the first of two sections: Name="WorkspaceLink". Within the section that looks like similar to this:

Field ID="{881eac4a-55a5-48b6-a28e-8329d7486120}" Type="URL" Name="Workspace" DisplayName="$Resources:core,WorkspaceUrl;" Hidden="TRUE" Sealed="TRUE" .............

• Add ShowInNewForm="FALSE" ShowInEditForm="FALSE" after Hidden="TRUE"
• Find the next section by searching for Name="Workspace. Within the section that looks similar to this:

Field ID="{881eac4a-55a5-48b6-a28e-8329d7486120}" Type="URL" Name="Workspace" DisplayName="$Resources:core,WorkspaceUrl;" Hidden="TRUE" Sealed="TRUE" .............

• Add ShowInNewForm="FALSE" ShowInEditForm="FALSE"after Hidden="TRUE"
• Save the file.
• Perform an IIS restart by clicking the Start menu, click Run, type CMD. This will bring up the command-line window. Type iisreset and press Enter