It's important to be careful with requests like this. MSDLG874.FON is a system font file (Microsoft Dialog, code page 874 for Thai). Searching for "free download" of individual Windows system files often leads to unsafe, outdated, or pirated sources.
Last updated: October 2025 – Verified for Windows XP SP3 and POSReady 2009.
Navigate to the I386 folder on the CD.
Example: D:\I386
From a Windows XP VM
Also check:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\NLS\CodePage
Ensure 874 (Thai) is mapped to c_874.nls. If not, your language pack is broken.
C:\Windows\Fonts\MSDLG874.FON