Following the steps below you can have the 'SafeBoot' option at the boot menu of Windows XP :
1. Open a command prompt
2. Copy the current c:\boot.ini to another name (just in case)
3. With your favorite text editor, edit c:\boot.ini
4. Copy then edit the current boot line to another line. For example:
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Micro soft Windows XP Professional" /fastdetect
might copy and then change to:
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Micro soft Windows XP Professional Safeboot" /fastdetect
5. Start MSCONFIG
6. Click on the BOOT.INI tab
7. Highlight the second line with the additional name of Safeboot
8. Check the /SAFEBOOT box with option you want
