I tried to run my ActiveX-embled MFC Application on Computer with out VC++ install and It doesn't work But It work on another computer with vc++ 6.0 installed Can someone suggest the solution?

My program designed to be use only on Windows with Thai setting. If the user's windows had a american date/time format It will not work as expected Is there anyway to get the information of current standard/format using MFC or win32API function ? I want to do something like this if(CurrentDateTimeFormat() != thai){ MessageBox("Please set region & format to thai before using","noticed",MB_OK); EndDialog(0); } thank in advance