This issue causes a potential conflict with other applications on the system and causes DSL or the other application to crash:

• An RMCPlg.exe error appears when DSL launches
• A BTTray.exe error appears
• Unable to create system recovery discs, as the buttons on the system recovery disc screen are unresponsive

1. Browse to the Microsoft website to download a copy of the MFC80.dll file.   
   
   
2. Select the version that is correct for the language and bit version of your operating system.  
   
   The file is a redistributable hot fix and has a name such as Vcredist_x86.exe (regular 32 bit) or _X64 (64 bit OS). For example, 
   ENU (vcredist_x86.exe) is for English 32 bit.