Take a look at
http://www.addictivetips.com/windows-tips/fix-msvcp71-dll-and-msvcr71-dll-missing-error-in-windows-7/

>I notice msvcr71.dll is already in original project of installshield.
>
>Maybe put in Windows System.
>
>Won't it conflict if I put it in the main folder of my application ?
>
>
>Moises
>
>
>
>
>>>Hi
>>>
>>>I have a problem and the error message is:
>>>
>>>"library file vfpcompression.fll is invalid"
>>>
>>>Its funny that software is running over 500 computers with no problem.
>>>
>>>Here, Windows 7 works fine.
>>>
>>>But this client complains about this message in his windows 7.
>>>
>>>Moises
>>
>>The problem is the lack of:
>>msvcr71.dll and msvcp71.dll