If you install Microsoft Office Communicator 2007 (MOC 2007) on a machine that already has MOC 2005 installed, when you launch MOC 2007, you may see Windows Installer run to configure MOC and then display this error message:
"The file 'eulamsdnrtf' cannot be installed because the file cannot be found in cabinet file 'MsgrCore.cab'. This could indicate a network error, an error reading from the CD-ROM or a problem with this package."
Restarting will allow MOC 2007 to launch successfully and log in, but when you try to initiate a text chat, you will get the same 'eulamsdnrtf' error.
To fix this:
- Quit all instances of Communicator.
- Use Add/Remove Programs on W2k/XP (Programs and Features on Vista/Win7) to remove all versions of Communicator.
- Then (re)install MOC 2007.