sMonThousandSep

HKCU\Control Panel\International

Data type	Range	Default value
REG_SZ	Symbol	For U.S. English: "," (comma)

Description

Specifies the symbol used to separate the thousands in currency.

For example, in the value, $1,000, a comma separates the values.

Change method

To change the value of this entry, double-click Regional Options in Control Panel. Click the Currency tab, and then Select a symbol from the Digit grouping symbol drop-down box.

Note Image Note

Regional Options in Control Panel restricts this entry such that it will not accept the numeric digits 0-9. Editing the registry directly to set this value to a numeric digit could have one of two effects:

If an application calls the GetCurrencyFormat API, the system will use the default symbol for the locale.
If an application does not use the GetCurrencyFormat API and the application does not check the format itself, the numeric value will be used. This could cause errors if the value is used in calculations.