Problem with install inDesign Debug CS4, CS5, CS5.5.
"Cannot load plugin FONT MANAGER.RPLN" "Cannot load plugin SING.APLN". Then inDesign crashes.
Windows 7 Professional 64-bit.
Visual Studio 2005, 2008, 2010 preinstalled.
It looks like you didn't install Visual Studio 2005 SP1.
Please refer to http://helpx.adobe.com/indesign/kb/indesign-debug-fails-launch.html.
I tried to reinstall system to 32-bit windows-7 professional, then I tried to install only VS-2008 and CS5.0 debug.
Before CS installation I installed all windows and VS-2008 updates.
With the same result when CS5.0 debug starts: "Cannot load plugin FONT MANAGER.RPLN" "Cannot load plugin SING.APLN".
Then inDesign crashes.
In addition: MacBook Pro with Lion OS and "bootcamped" windows-7.
I'm not sure whether you have ever seen the link http://helpx.adobe.com/indesign/kb/indesign-debug-fails-launch.html. Since there is no description about VS 2005 SP1 in your post.