MD5 Plugin DLL by Matthew "IGx89" Lieder
Derived from the RSA Data Security, Inc. MD5 Message-Digest Algorithm

Usage:

Push $1 ;string
CallInstDll "md5dll" GetMD5
Pop $1 ;md5 of string

-or-

Push $1 ;filename
CallInstDll "md5dll" GetFileMD5
Pop $1 ;md5 of file