Hi,

I would start by looking in the program's error handler logs to find exact location of the code that causes an error.

>Help !
>
>I have a program I have inherited a program, has been transfered from Foxpro 2.6 for DOS onto Foxpro 5.
>
>The program runs fine on Windows 2000, bur crashes with a data type mismatch error when run from Windows 98.
>
>Unfortunately, the program is not structered well at all, & there is no documentation for it of any sort.
>
>I've tried to follow the program flow running the program on both operatoing systems but the program is so large & complicated i'm have real problems following the program flow.
>
>Are there any differences/strange bugs etc that could be the cause of this.
>
>Thanks in advance
>
>RC
>BSS