"tascienu@ecoaches.com" wrote:

> Symptoms:
>
> 1. Create a class library: LIB project in directory c:\LIB
> 2. Create a WINAPP project in directory c:\WINAPP
> 3. Include LIB's .dll in WINAPP as a vb.net reference.
> 4. Build WINAPP. works great.
> 5. Build LIB. works great.
> 6. Make changes to LIB.
> 7. Debug WINAPP with breakpoints.
> 8. Finish debugging WINAPP.
> 9. Make changes to LIB.
> 10. Build lib.
> 11. Try to make changes to WINAPP. and build it. Error message comes
> up:
>
> Cannot copy assembly 'LIB' to file 'c:\WINAPP\bin\EBX.dll'. The
> process cannot access the file because it is being used by another
> process.
>
> 12. Close WINAPP solution. Keep LIB solution open. Re-open WINAPP.
> build WINAPP. it works!!!
>
> My question is, which file is being used by another process??? which
> one? c:\LIB\BIN\lib.dll or c:\WINAPP\bin\EBX.dll. why when i close the
> solution and I open the WINAPP solution again, LIB still unchanged, it
> works? how can it be blocking itself from accessing the file??? I would
> understand if it is LIB that is blocking it... but i think it blocks
> itself...
>