Make sure the MsgPlus.exe isn't running, it could be, and you could be reinstalling msgplus! just becuase it isn't hooked to msn messenger. (CTRL+ALT+Delete > Processes> look for MsgPlus.exe) If it running then simply restart msn messenger and Plus! should be hooked, if it is hooked do the following steps:
For Plus! to load automatically before msn messenger(or to get forced to hook to msn messenger) go to Plus> Preferences> General Options> Miscellaneous> Go down to "Messenger Plus! Automatic Recovery Options" and choose "Default mode- forced" from the drop down menu.
I hope that was the problem and this helped you.
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