E-Book Reader

I downloaded e-book reader which is compatible with my Vista Home Premium but I couldn't open my e-book.

I also downloaded Microsoft dotnet 1.1 redistributable package.

I always got this message popping-up:-

"Application has generated an exception that could not be handled"

Process ID: OxbfO (3056)

Thread ID: Ox 1154

"debug runtime Common language services"

Any help for me, please!