DataMask - Version 1.0j Build 523 DataMask is a set of ActiveX Controls that provide you with advanced input masking for text, date/time, and numeric/currency data. Virtually every type of information can be masked using these three controls from phone numbers to international date fields and different currencies. All of the controls support international settings for date, time and currency input. DataMask is the only source for providing your end users with structured, error free data entry in any of your applications!