End Google Ads 201810 - BS.net 01 --> When I try to put WaitForSingleObject in the main dialog of a program using visual studio c++ 6.0 I get a c0239 error: WaitForSingleObject: is not a member of global namespace, yet WaitForSingleObject pops up in the window of available member variables and functions when I type "::", and I am using WaitForSingleObject in several threads that are started by the main Dialog and exist in separate files. I made sure all the #includes matched in the different files. Does anybody know what is going on?