Fatal Execution Engine Error (79FFEE24) (80131506)

Question

I\'m encountering problems with my .NET Framework 3.0 SP1 application. It is a C# winforms application communicating with a COM exe. Randomly either the winforms app or the

Answer 1

I had this error, it (luckily) went away by installing 3.5 SP1, which bumps your runtime to version 2.0.50727.3053 (this is a nice version summary).

While hunting for solutions I found a wild range of suspects for this error. Some people even claimed it was the antivirus (!)

YMMV, good luck.