or download this
"*** You're using Microsoft Visual C++ compiler or similar but the LIB
+ and INCLUDE environment variables are not both set. You need to run
+the VCVARS32.BAT batch file that was supplied with the compiler befor
+e you can use it. A copy of vcvars32.bat can typically be found in th
+e following directories under your Visual Studio install directory: V
+isual C++ 6.0: vc98\bin Visual Studio .NET: vc7\bin Find it, run it,
+then retry this. If you think this error is not correct then just set
+ the LIB and INCLUDE environment variables to some value to disable t
+he check."