用vbs列出机器上所有能调用的组件

set wshshell = CreateObject("WScript.Shell") 
set registry = CreateObject("regtool.tob") 
'获取一个dictionary对象存储键名 
set dict = CreateObject("Scripting.Dictionary") 
'列举HKEY_CLASSES_ROOT中所有键 
set allkeys = registry.RegEnum("HKCR\") 
'排除所有键中键名有点的。 
for each key in allkeys 
'第1个点在哪儿（跳过初始点)? 
pos = Instr(2, key, ".") 
if pos>0 then 
'there's a dot. Is there another one? 
pos2 = Instr(pos+1, key, ".") 
if pos2>0 then 
'yes, so this name is version specific 
'check whether we already have a 
'version-independent progid! 
independent = left(key, pos2-1) 
if not dict.Exists(independent) then 
'no, store it 
dict.Add key, 0 
end if 
else 
'this one is version-independent. 
'do we already have a version-dependent 
'progID in store? 
vdpid = "" 
for each element in dict 
if len(element)>len(key) then 
if left(element, len(key)+1)=key  "." then 
'yes, return name 
vdpid = element 
exit for 
end if 
end if 
next 
'any version dependent progID found? 
if vdpid="" then 
'no, add to store 
dict.add key, 0 
else 
'yes, replace 
dict.Remove vdpid 
dict.add key, 0 
end if 
end if 
end if 
next 
MsgBox dict.Count  " Objects found!" 
for each key in dict 
list = list  key  vbCrlf 
next 
MsgBox list 
outputfile = "C:\OBJECT.TXT" 
set fs = CreateObject("Scripting.FileSystemObject") 
set output = fs.CreateTextFile(outputfile, true) 
print dict.Count  " Objects found!" 
Print list 
output.close 
wshshell.run outputfile 
sub Print(text) 
'写信息到记录文件 
output.WriteLine text 
end sub