PNW Delphi Users Group - Coding in the Northwest

Sometimes, the help file in Delphi 2007 (and Delphi 2006) can just get itself into a tizzy.  Reinstalling the IDE is not a very appealing idea, so what can you do?

A blog by Chris Bensen posted a working solution to restore the Delphi 2007 IDE back to snuff.  The side effect is that your third party components help files that are integrated into the Delphi 2007 may require reregistration.

1. The first thing you should do is close the IDE. 
2. The best thing is to reboot the computer or open your Task Manager and kill any instances of dexplorer.exe running.
3. You need to unregister the Delphi 2007 help by running the following command (replacing the path's appropriately based on your installation).
   "C:\Program Files\CodeGear\RAD Studio\5.0\Help\Doc\H2Reg.exe" -u cmdfile="C:\Program Files\CodeGear\RAD Studio\5.0\Help\Doc\h2reg.ini"
4. You need to register the Delphi 2007 help by running the following command (replacing the path's appropriately based on your installation).
   "C:\Program Files\CodeGear\RAD Studio\5.0\Help\Doc\H2Reg.exe" -r cmdfile="C:\Program Files\CodeGear\RAD Studio\5.0\Help\Doc\h2reg.ini"

The first time you open the help file in the IDE, the help will need to rebuild itself and then be back to life.  You can then apply the similar trick with your third party help files.