|The stupid question is the question not asked|
Ah, sorry. Of course. There is a command 'describe' in PPM.
Lets say you make a search for Foo:
Which returns the result
When you then try 'install 1' to get Foo installed, you get the error message "No suitable implementation found" or some such. Then do 'describe 1', followed by another 'install 1'. Describe does list what platforms are available, and if 'MSWin32-x86-multi-thread' is not in the list, you are out of luck. Many times though, it seems PPM doesn't really check for this, but the describe forces it to do so, making the installation succeed.
And yes, you can do 'describe Foo' directly instead.
Hope that helps.
You have moved into a dark place.
It is pitch black. You are likely to be eaten by a grue.