We use Parallels to develop over Windows, but with the last release we found a big issue, we were detecting memory leaks, and found that Parallels tools produce a huge memory leak on the HEAP. If we remove some DLLs from Parallels tools the memory leak gone.
Yuhoh... Which DLLs 'fix' the leak? Also, you probably want to put in a trouble ticket if you have not already.
