While compiling(`pdflatex`) with the following code, I am asked to install `ifxetex` package everytime.

```
\documentclass{article}
\usepackage[T1]{fontenc}
\usepackage{lipsum}
\usepackage{geometry}
\geometry{papersize={15cm, 5cm}}

\begin{document}
\lipsum[5-7]
\end{document}

```

How should I go about it?

`~/tex/latex/ifxetex` has `ifxetex.sty` file in it.

Using `windows Xp`, `MikTeX 2.8` and `WinEdt` IDE

I got the error as shown below when I tried to update the package.

![enter image description here](https://i.stack.imgur.com/1B64h.png)