This is a known problem, and it cannot be fixed.
When Microsoft delivered its MSDN Library in the old HTML Help 1.x format, they used .col
files to list all the .chm
files that were to be included in the collection.
The only solution is to move the CHM to another folder.
Any chm file that is in a folder named
*.col*
will not open. Example paths that will cause this error:
C:\asdf.col\TFSInstall.chm
C:\Documents and Settings\john.coltrane\Desktop\TFSInstall.chm