Category: Windows Server

Installing SMTP and the missing adsiisex.dll

You have just tried to install SMTP onto your Windows 2003 server and can’t for the life of you find the requested file ‘adsiisex.dll’. After the blood has dried on the desk from banging your head on it, you start to search the web for help.

Rather annoying the file turns out to be buried in the ‘’ file. Here is how to get it out and continue with your install.

  1. Expand the ‘’ to a temp location. To do this you need to use the EXPAND command line tool as below.

Expand command

The ‘-F:*’ tells it to expand all the files in the CAB.

  1. Point the Windows Component wizard to the expanded files location and the install should complete OK.