Quoted from Pats link:
Removing Ctfmon.exe from MSConfig does not disable Ctfmon.exe. For more information about disabling Ctfmon.exe, refer to the "Can I remove the Ctfmon.exe file?" section earlier in this article.
Can I Remove the Ctfmon.exe File?
Removing the Ctfmon.exe might cause problematic behavior in your Office XP programs, so removing it is not recommended. To prevent Ctfmon.exe from running, follow these steps.
Step 1: Uninstall Alternative User Input
To uninstall the alternative user input feature, set the installation state to Not Available in Office XP Setup.
1. Quit all Office programs.
2. Click Start, point to Settings, and then click Control Panel. NOTE: In Windows XP, click Start and then click Control Panel.
3. In Control Panel, double-click Add/Remove Programs.NOTE: In Windows XP, click Add or Remove Programs.
4. In the Currently installed programs list, click to select Microsoft Office XP product, where Office XP product is the name of the specific Office product being used. If you are using a standalone version of one of the Office programs, click to select the appropriate product in the list. Click Change.
5. In the Maintenance Mode Options dialog box, select Add or Remove Features, and then click Next. This displays the Choose installation options for all Office applications and tools dialog box.
6. Click the plus sign (+) next to Office Shared Features to expand it.
7. Click the icon next to Alternative User Input, and then select Not Available.
8. Click Update.