How can I fix the corrupt display of certain strings in non-Western-European charsets?

PRTG comes with a set of languages that feature their according code page settings. If you use a Windows with a different system code page you have to adapt the language file you are using to your needs. This can be done as follows:

• Locate the language file (usually English.lng) in the language folder of your PRTG installation.
• Copy and rename it to English(mylanguage).lng
• Open the new file in your text editor
• At the top of the file, change the following entries to:

<Language id="en" name="English(mylanguage)"> <codepage>mycharset</codepage>

where mycharset has to be replaced with an entry from this list: http://www.w3.org/International/O-charset-list.html, e.g. shift_jis for Japanese or iso-8859-5 for Russian(Cyrillic). You might want to experiment with the alternatives if it still doesn't work.

If your charset uses multibytes as Japanese, Chinese, Korean etc. you also have to change the chartfont entry in the lng file:

<chartfont> msgothic.ttc </chartfont>

This font should work with most multibyte charsets.

Save the changes, open the PRTG Server Administrator, select English(mylanguage) from the list, click OK and restart the PRTG service.

Now PRTG should display the strings correctly.