Portable Python com server using pywin32

It's possible to register and use a class without privileges. The class has to be registered in the current user instead of all users.The option is not provided, so you'll have to register it yourself by writing the keys in HKCU\SOFTWARE\Classes.

Here's a working example:

import os, sys, win32api, win32con, win32com.server.registerclass HelloWorld(object):  _reg_progid_ = "Python.TestServer"  _reg_clsid_ = "{7CC9F362-486D-11D1-BB48-0000E838A65F}"  _reg_desc_ = "Python Test COM Server"  _public_methods_ = ['Hello']  def Hello(self):    return "Hello!"def RegisterClass(cls):  file = os.path.abspath(sys.modules[cls.__module__].__file__)  folder = os.path.dirname(file)  module = os.path.splitext(os.path.basename(file))[0]  python = win32com.server.register._find_localserver_exe(1)  python = win32api.GetShortPathName(python)  server = win32com.server.register._find_localserver_module()  command = '%s "%s" %s' % (python, server, cls._reg_clsid_)  typename = module + "." + cls.__name__  def write(path, value):    win32api.RegSetValue(win32con.HKEY_CURRENT_USER, path, win32con.REG_SZ, value)  write("SOFTWARE\\Classes\\" + cls._reg_progid_ + '\\CLSID', cls._reg_clsid_)  write("SOFTWARE\\Classes\\AppID\\" + cls._reg_clsid_, cls._reg_progid_)  write("SOFTWARE\\Classes\\CLSID\\" + cls._reg_clsid_, cls._reg_desc_)  write("SOFTWARE\\Classes\\CLSID\\" + cls._reg_clsid_ + '\\LocalServer32', command)  write("SOFTWARE\\Classes\\CLSID\\" + cls._reg_clsid_ + '\\ProgID', cls._reg_progid_)  write("SOFTWARE\\Classes\\CLSID\\" + cls._reg_clsid_ + '\\PythonCOMPath', folder)  write("SOFTWARE\\Classes\\CLSID\\" + cls._reg_clsid_ + '\\PythonCOM', typename)  write("SOFTWARE\\Classes\\CLSID\\" + cls._reg_clsid_ + '\\Debugging', "0")  print("Registered %s" % cls.__name__)if __name__ == '__main__':  RegisterClass(HelloWorld)