hobomaster22 has just released the latest version of DoomLauncher, the number one doom frontend for organizing and playing all your favorit wads and projects (which are currently 563 pieces in my archive to give you an idea how useful this can be). The author has fixed various issues and added a load of different new features, including

Changes

• Added Play Random Unrated and Play Random Unplayed
• Added quick link to view launch parameters
• Launch parameters are now merged together (e.g. single -file parameter)
• Columns changed in Additional Files will reflect back to the main tabs
• Increased size of Additional Files dialog
• Fixed crash that can happen when an IWAD is deleted and files linked that IWAD are launched
• Fixed issue for map marker finding
  
  

Just download the new version from the official project page on the Realm667 and extract the new files into the program's directory by overwriting the old ones and you are ready to go. Have fun!