fixes issue 505 + don't check WNDCLASSEX strings on write
fixes issue 505
+ don't check WNDCLASSEX strings on write

SVN-Revision: 408

LohithBlaze/drmemory,code4bones/drmemory,code4bones/drmemory,code4bones/drmemory,sigma-random/drmemory,code4bones/drmemory,sigma-random/drmemory,LohithBlaze/drmemory,LohithBlaze/drmemory,code4bones/drmemory,sigma-random/drmemory,LohithBlaze/drmemory,LohithBlaze/drmemory,sigma-random/drmemory,sigma-random/drmemory