A Customized Codepage is used for any non SQL Data access. The customized translation codepage is needed because any MFE Modules that process data will receive “raw” data which is outside the bounds of their normal processing.  When a program is being debugged or run, then RTS 173 error appears on file MFLEINT.

The error appears when the LE option in the Project Settings is turned on and a Customized Codepage is defined but the newly defined codepage doesn’t have a corresponding csnnnn.gnt file in the \\mfe\\base\\bin subfolder.

To resolve the issue a csnnnn.gnt file has to be generated for the user defined conversion tables and then placed in the \\mfe\\base\\bin subfolder.  The process of csnnnn.gnt file generation is described in the product’s documentation.