Plug-in for CSML:MultiUser

Trying to install an old car manual which uses Acrobat Reader 4.0. on a XP Pro laptop with SP3.

I have the latest adobe reader X!.

During the install, acrobat reader opens with a error message. Asking for a (Plug-in required by the 'CSML:MultiUser' security handler is not available.).

While the Acrobat.4.0 page is loading/shown.

Any clues what this is and where would this be found or anyway around it.

Thanks

 

Thanks,

There is already a Acrobat Reader 4.0 folder within the program, but I have downloaded your link and will try.

I do have Adobe Acrobat Reader XI Pro on my other Laptop, anyone know if this would cure the problem.

Or what should I be looking for.

thanks