LV> "a:\cpp\filename.cdm" and I want to change its file extension
LV> so it reads  "a:\cpp\filename.trk"
    You can assume (dos & win3.x) that the string will only have
    one period in it. Then you can do the following.
         find the position of the period
         make sure there are 3 chars following the period
         replace .XXX with .YYY
    const char *strchr(const char *s, int c);                    // C++ only
    strchr scans a string in the forward direction, looking for a specific
    character. strchr finds the first occurrence of the character c in the
    string s.  The null-terminator is considered to be part of the string.
    size_t strlen(const char *s);
    strlen returns the number of characters in s, not counting the 
    null-terminating character.
--- GEcho 1.00
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