I have a program that often refuses to start from the IDE. Without changing anything in my code, I quit and restart the IDE 5-10 times and suddently it allows me to compile and run my program.

When it refuses, I get the error "The operation could not be completed. Teh process cannot access the file because it is being used by another process.". If I try a second time without quitting the IDE, I get the error "Visual Studio could not copy a support file to this location: 'S:\DotNet-Apps\MyProg\bin\Debug\MyProg.vshost.exe'. Please verify the path exists and is writable."

I am 100% that I am the only one working in this program, so it cannot be locked by another user.