pif文件
.pif是Dos程序在Windows中的快捷方式扩展名
32位程序是.lnk，dos程序是.pif，不是病毒，双击不能打开就不要用它，可以试试这样：建立一个快捷方式，再输入项目位置时输入“command /k ”和你的程序的绝对路径就行了比如“command /k c:\tc.exe”
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pif格式的文件一般很少见的，是一种指向DOS的快捷方式文件，运行时调用command.com执行命令，常常被病毒利用，所以不要轻易运行此类文件。
怎么才能不运行此文件那？？
大家把下面的代码考到你的记事本里，然后点另存为，起一个名字如：不在运行.reg
保存完后，运行。
代码如下：
Windows Registry Editor Version 5.00
[HKEY_CLASSES_ROOT\piffile]
@="指向 MS-DOS 程序的快捷方式"
"EditFlags"=hex:01,00,00,00
"IsShortcut"=""
"NeverShowExt"=""
[HKEY_CLASSES_ROOT\piffile\shell]
[HKEY_CLASSES_ROOT\piffile\shell\open]
[HKEY_CLASSES_ROOT\piffile\shell\open\command]
@=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,00,74,00,25,\
00,5c,00,73,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,4e,00,4f,00,\
54,00,45,00,50,00,41,00,44,00,2e,00,45,00,58,00,45,00,20,00,25,00,31,00,00,\
00
//………………………………………………………………………………………………………………//
测试方法：
在你的记事本里打上测试两字，然后点另存为，起一个名字如：测试.pif
保存完后，运行。看看是不是用记事本打开了呵呵。这样就可阻止他运行了。
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微软没有公开发表.PIF文件的格式，下面的这个VB的例子程序表明了.PIF文件的基本格式，供你参考。其中sPIF表示.PIF文件的文件名。
Sub GetPIFInformation (sPIF As String)
Dim l0190 As Integer
Dim l0192 As Variant
Dim sInfo As String
Dim l0198 As String
Dim l019A As String
Dim l019E As Long
Dim l01A0 As Long
Dim l01A2 As Long
Dim l01A4 As Integer
Dim l01A6 As Long
Dim l01AE As Long
Dim l01B8 As Integer
Dim l01BA As Integer
Dim l01BC As Integer
Dim l01BE As Integer
Dim l01C0 As Long
Static m01C4 As Integer
l0192 = sPIF
List1.AddItem l0192
l01AE = 370
Open sPIF For Binary Access Read As #1
l0198 = String$(64, " ")
Get #1, l01AE, l0198
Close #1
l019E = Val("&H" + Hex(Asc(Mid$(l0198, 18, 1)))) * 256
l019E = l019E + Val("&H" + Hex(Asc(Mid$(l0198, 17, 1))))
l01A0 = Val("&H" + Hex(Asc(Mid$(l0198, 22, 1)))) * 256
l01A0 = l01A0 + Val("&H" + Hex(Asc(Mid$(l0198, 21, 1))))
l01A2 = Val("&H" + Hex(Asc(Mid$(l0198, 40, 1)))) * 256
l01A2 = l01A2 + Val("&H" + Hex(Asc(Mid$(l0198, 39, 1))))
Open sPIF For Binary Access Read As #1
l0198 = String$(16, " ")
Get #1, l019E + 1, l0198
Close #1
If Mid$(l0198, 9, 3) = "286" Then
List1.AddItem " ( 2 8 6 F O R M A T )"
l01A4 = 1
Else
If Mid$(l0198, 9, 3) = "386" Then
List1.AddItem " ( 3 8 6 F O R M A T )"
l01A4 = 0
Else
List1.AddItem " ( ? ? ? F O R M A T )"
l01A4 = 9
End If
End If
l01AE = 37
Open sPIF For Binary Access Read As #1
l0198 = String$(64, " ")
Get #1, l01AE, l0198
Close #1
l0190 = 64
Call CStrToBStr(l0198, l019A, l0190)
List1.AddItem "Program Filename=<<" + l019A + ">>"
l01AE = 3
Open sPIF For Binary Access Read As #1
l0198 = String$(48, " ")
Get #1, l01AE, l0198
Close #1
l0190 = 30
Call CStrToBStr(l0198, l019A, l0190)
List1.AddItem "Window Title=<<" + l019A + ">>"
If l01A4 = 0 Then
l01AE = 454
End If
If l01A4 = 1 Then
l01AE = 482
End If
Open sPIF For Binary Access Read As #1
l0198 = String$(64, " ")
Get #1, l01AE, l0198
Close #1
l0190 = 64
Call CStrToBStr(l0198, l019A, l0190)
List1.AddItem "Optional Parameters=<<" + l019A + ">>"
l01AE = 102
Open sPIF For Binary Access Read As #1
l0198 = String$(64, " ")
Get #1, l01AE, l0198
Close #1
l0190 = 64
Call CStrToBStr(l0198, l019A, l0190)
List1.AddItem "Start-up Directory=<<" + l019A + ">>"
If l01B8 < TextWidth(l019A) + 23 Then l01B8 = TextWidth(l019A) + 23
If l01A4 = 0 Then
l01AE = 410
End If
If l01A4 = 1 Then
l01AE = 438
End If
Open sPIF For Binary Access Read As #1
l0198 = String$(64, " ")
Get #1, l01AE, l0198
Close #1
sInfo = "Video Memory:"
If (Asc(Mid$(l0198, 25, 1)) And &H40) > 0 Then
sInfo = sInfo & " High Graphics"
End If
If (Asc(Mid$(l0198, 25, 1)) And &H20) > 0 Then
sInfo = sInfo & " Low Graphics"
End If
If (Asc(Mid$(l0198, 25, 1)) And &H10) > 0 Then
sInfo = sInfo & " Text"
End If
List1.AddItem sInfo
l01A6 = Val("&H" + Hex(Asc(Mid$(l0198, 8, 1)))) * 256
l01A6 = l01A6 + Val("&H" + Hex(Asc(Mid$(l0198, 7, 1))))
sInfo = "Memory Req: KB Required" & Str$(l01A6)
sInfo = sInfo & Space$(6 - Len(Str$(l01A6)))
l01A6 = Val("&H" + Hex(Asc(Mid$(l0198, 6, 1)))) * 256
l01A6 = l01A6 + Val("&H" + Hex(Asc(Mid$(l0198, 5, 1))))
sInfo = sInfo & " KB Desired " & Str$(l01A6)
List1.AddItem sInfo
l01A6 = Val("&H" + Hex(Asc(Mid$(l0198, 16, 1)))) * 256
l01A6 = l01A6 + Val("&H" + Hex(Asc(Mid$(l0198, 15, 1))))
sInfo = "EMS Memory: KB Required" & Str$(l01A6)
sInfo = sInfo & Space$(6 - Len(Str$(l01A6)))
l01A6 = Val("&H" + Hex(Asc(Mid$(l0198, 14, 1)))) * 256
l01A6 = l01A6 + Val("&H" + Hex(Asc(Mid$(l0198, 13, 1))))
sInfo = sInfo & " KB Limit " & Str$(l01A6)
List1.AddItem sInfo
l01A6 = Val("&H" + Hex(Asc(Mid$(l0198, 20, 1)))) * 256
l01A6 = l01A6 + Val("&H" + Hex(Asc(Mid$(l0198, 19, 1))))
sInfo = "XMS Memory: KB Required" & Str$(l01A6)
sInfo = sInfo & Space$(6 - Len(Str$(l01A6)))
l01A6 = Val("&H" + Hex(Asc(Mid$(l0198, 18, 1)))) * 256
l01A6 = l01A6 + Val("&H" + Hex(Asc(Mid$(l0198, 17, 1))))
sInfo = sInfo & " KB Limit " & Str$(l01A6)
List1.AddItem sInfo
sInfo = "Display Usage: "
If (Asc(Mid$(l0198, 21, 1)) And &H8) > 0 Then
sInfo = sInfo & "Full Screen"
Else
sInfo = sInfo & "Windowed "
End If
sInfo = sInfo & " Execution: "
If (Asc(Mid$(l0198, 21, 1)) And &H2) > 0 Then
sInfo = sInfo & "Background"
Else
sInfo = sInfo & "Foreground"
End If
List1.AddItem sInfo
sInfo = " "
If (Asc(Mid$(l0198, 21, 1)) And &H1) > 0 Then
sInfo = sInfo & "Close Window on Exit OFF"
Else
sInfo = sInfo & "Close Window on Exit ON"
End If
sInfo = sInfo & " "
If (Asc(Mid$(l0198, 21, 1)) And &H4) > 0 Then
sInfo = sInfo & "Exclusive"
Else
sInfo = sInfo & "Shared "
End If
List1.AddItem sInfo
sInfo = "- - - - - - - - - - - - - - - - - - - - - - - - - - - -"
List1.AddItem sInfo
If l01B8 < TextWidth(sInfo) Then l01B8 = TextWidth(sInfo)
l01A0 = Val("&H" + Hex(Asc(Mid$(l0198, 12, 1)))) * 256
l01A0 = l01A0 + Val("&H" + Hex(Asc(Mid$(l0198, 11, 1))))
l01A2 = Val("&H" + Hex(Asc(Mid$(l0198, 10, 1)))) * 256
l01A2 = l01A2 + Val("&H" + Hex(Asc(Mid$(l0198, 9, 1))))
sInfo = "Background Priority:" & Str$(l01A0)
sInfo = sInfo & " Foreground Priority:" & Str$(l01A2)
List1.AddItem sInfo
sInfo = " "
If (Asc(Mid$(l0198, 22, 1)) And &H10) > 0 Then
sInfo = sInfo & "Detect Idle Time ON"
Else
sInfo = sInfo & "Detect Idle Time OFF"
End If
List1.AddItem sInfo
If (Asc(Mid$(l0198, 22, 1)) And &H80) > 0 Then
sInfo = "EMS Memory Locked ON "
Else
sInfo = "EMS Memory Locked OFF"
End If
sInfo = sInfo & " "
If (Asc(Mid$(l0198, 23, 1)) And &H1) > 0 Then
sInfo = sInfo & "XMS Memory Locked ON"
Else
sInfo = sInfo & "XMS Memory Locked OFF"
End If
List1.AddItem sInfo
If (Asc(Mid$(l0198, 22, 1)) And &H20) > 0 Then
sInfo = "Uses High Memory OFF"
Else
sInfo = "Uses High Memory ON "
End If
sInfo = sInfo & " "
If (Asc(Mid$(l0198, 23, 1)) And &H4) > 0 Then
sInfo = sInfo & "Lock Application Memory ON"
Else
sInfo = sInfo & "Lock Application Memory OFF"
End If
List1.AddItem sInfo
sInfo = "Monitor: "
If (Asc(Mid$(l0198, 25, 1)) And &H2) > 0 Then
sInfo = sInfo & "Text OFF"
Else
sInfo = sInfo & "Text ON "
End If
sInfo = sInfo & " "
If (Asc(Mid$(l0198, 25, 1)) And &H4) > 0 Then
sInfo = sInfo & "Low Graphics OFF"
Else
sInfo = sInfo & "Low Graphics ON "
End If
sInfo = sInfo & " "
If (Asc(Mid$(l0198, 25, 1)) And &H8) > 0 Then
sInfo = sInfo & "High Graphics OFF"
Else
sInfo = sInfo & "High Graphics ON"
End If
List1.AddItem sInfo
sInfo = " "
If (Asc(Mid$(l0198, 25, 1)) And &H1) > 0 Then
sInfo = sInfo & "Emulate Text Mode ON "
Else
sInfo = sInfo & "Emulate Text Mode OFF"
End If
sInfo = sInfo & " "
If (Asc(Mid$(l0198, 25, 1)) And &H80) > 0 Then
sInfo = sInfo & "Retain Video Memory ON"
Else
sInfo = sInfo & "Retain Video Memory OFF"
End If
List1.AddItem sInfo
sInfo = " "
If (Asc(Mid$(l0198, 23, 1)) And &H2) > 0 Then
sInfo = sInfo & "Allow Fast Paste ON "
Else
sInfo = sInfo & "Allow Fast Paste OFF"
End If
sInfo = sInfo & " "
If (Asc(Mid$(l0198, 21, 1)) And &H1) > 0 Then
sInfo = sInfo & "Allow Close When Active ON"
Else
sInfo = sInfo & "Allow Close When Active OFF"
End If
List1.AddItem sInfo
sInfo = "Keys: "
If (Asc(Mid$(l0198, 21, 1)) And &H20) > 0 Then
sInfo = sInfo & "Alt+Tab ON "
Else
sInfo = sInfo & "Alt+Tab OFF"
End If
sInfo = sInfo & " "
If (Asc(Mid$(l0198, 21, 1)) And &H40) > 0 Then
sInfo = sInfo & "Alt+Esc ON "
Else
sInfo = sInfo & "Alt+Esc OFF"
End If
sInfo = sInfo & " "
If (Asc(Mid$(l0198, 22, 1)) And &H8) > 0 Then
sInfo = sInfo & "Ctrl+Esc ON"
Else
sInfo = sInfo & "Ctrl+Esc OFF"
End If
List1.AddItem sInfo
sInfo = " "
If (Asc(Mid$(l0198, 22, 1)) And &H4) > 0 Then
sInfo = sInfo & "PrtSc ON "
Else
sInfo = sInfo & "PrtSc OFF"
End If
sInfo = sInfo & " "
If (Asc(Mid$(l0198, 22, 1)) And &H2) > 0 Then
sInfo = sInfo & "Alt+PrtSc ON "
Else
sInfo = sInfo & "Alt+PrtSc OFF"
End If
sInfo = sInfo & " "
If (Asc(Mid$(l0198, 21, 1)) And &H80) > 0 Then
sInfo = sInfo & "Alt+Space ON"
Else
sInfo = sInfo & "Alt+Space OFF"
End If
List1.AddItem sInfo
sInfo = " "
If (Asc(Mid$(l0198, 22, 1)) And &H1) > 0 Then
sInfo = sInfo & "Alt+Enter ON "
Else
sInfo = sInfo & "Alt+Enter OFF"
End If
List1.AddItem sInfo
l01A0 = Val("&H" + Hex(Asc(Mid$(l0198, 30, 1)))) * 256
l01A0 = l01A0 + Val("&H" + Hex(Asc(Mid$(l0198, 31, 1))))
l01A2 = Val("&H" + Hex(Asc(Mid$(l0198, 28, 1)))) * 256
l01A2 = l01A2 + Val("&H" + Hex(Asc(Mid$(l0198, 29, 1))))
' Application Shortcut Key:
sInfo = " Application Shortcut Key: "
Select Case l01A0
Case 0: sInfo = sInfo & " "
Case 4: sInfo = sInfo & "Ctrl+"
Case 8: sInfo = sInfo & "Alt+"
Case 11: sInfo = sInfo & "Alt+Shift+"
Case 12: sInfo = sInfo & "Alt+Ctrl+"
Case 15: sInfo = sInfo & "Alt+Ctrl+Shift+"
Case Else: sInfo = sInfo & "??+"
End Select
Select Case l01A2
Case 0: sInfo = sInfo & "none"
Case 1: sInfo = sInfo & "01?"
Case 2: sInfo = sInfo & "1"
Case 3: sInfo = sInfo & "2"
Case 4: sInfo = sInfo & "3"
Case 5: sInfo = sInfo & "4"
Case 6: sInfo = sInfo & "5"
Case 7: sInfo = sInfo & "6"
Case 8: sInfo = sInfo & "7"
Case 9: sInfo = sInfo & "8"
Case 10: sInfo = sInfo & "9"
Case 11: sInfo = sInfo & "0"
Case 12: sInfo = sInfo & "-"
Case 13: sInfo = sInfo & "="
Case 14: sInfo = sInfo & "14?"
Case 15: sInfo = sInfo & "15?"
Case 16: sInfo = sInfo & "Q"
Case 17: sInfo = sInfo & "W"
Case 18: sInfo = sInfo & "E"
Case 19: sInfo = sInfo & "R"
Case 20: sInfo = sInfo & "T"
Case 21: sInfo = sInfo & "Y"
Case 22: sInfo = sInfo & "U"
Case 23: sInfo = sInfo & "I"
Case 24: sInfo = sInfo & "O"
Case 25: sInfo = sInfo & "P"
Case 26: sInfo = sInfo & "["
Case 27: sInfo = sInfo & "]"
Case 28: sInfo = sInfo & "28?"
Case 29: sInfo = sInfo & "29?"
Case 30: sInfo = sInfo & "A"
Case 31: sInfo = sInfo & "S"
Case 32: sInfo = sInfo & "D"
Case 33: sInfo = sInfo & "F"
Case 34: sInfo = sInfo & "G"
Case 35: sInfo = sInfo & "H"
Case 36: sInfo = sInfo & "J"
Case 37: sInfo = sInfo & "K"
Case 38: sInfo = sInfo & "L"
Case 39: sInfo = sInfo & ";"
Case 40: sInfo = sInfo & "'"
Case 41: sInfo = sInfo & "`"
Case 42: sInfo = sInfo & "42?"
Case 43: sInfo = sInfo & "\"
Case 44: sInfo = sInfo & "Z"
Case 45: sInfo = sInfo & "X"
Case 46: sInfo = sInfo & "C"
Case 47: sInfo = sInfo & "V"
Case 48: sInfo = sInfo & "B"
Case 49: sInfo = sInfo & "N"
Case 50: sInfo = sInfo & "M"
Case 51: sInfo = sInfo & ","
Case 52: sInfo = sInfo & "."
Case 53: sInfo = sInfo & "/"
Case 54: sInfo = sInfo & "54?"
Case 55: sInfo = sInfo & "55?"
Case 56: sInfo = sInfo & "56?"
Case 57: sInfo = sInfo & "57?"
Case 58: sInfo = sInfo & "58?"
Case 59: sInfo = sInfo & "F1"
Case 60: sInfo = sInfo & "F2"
Case 61: sInfo = sInfo & "F3"
Case 62: sInfo = sInfo & "F4"
Case 63: sInfo = sInfo & "F5"
Case 64: sInfo = sInfo & "F6"
Case 65: sInfo = sInfo & "F7"
Case 66: sInfo = sInfo & "F8"
Case 67: sInfo = sInfo & "F9"
Case 68: sInfo = sInfo & "F10"
Case 69: sInfo = sInfo & "NumLock"
Case 70: sInfo = sInfo & "70?"
Case 71: sInfo = sInfo & "Home"
Case 72: sInfo = sInfo & "Up"
Case 73: sInfo = sInfo & "PgUp"
Case 74: sInfo = sInfo & "NumMinus"
Case 75: sInfo = sInfo & "Left"
Case 76: sInfo = sInfo & "76?"
Case 77: sInfo = sInfo & "Right"
Case 78: sInfo = sInfo & "NumPlus"
Case 79: sInfo = sInfo & "End"
Case 80: sInfo = sInfo & "Down"
Case 81: sInfo = sInfo & "PgDn"
Case 82: sInfo = sInfo & "Ins"
Case 83: sInfo = sInfo & "Del"
Case 84: sInfo = sInfo & "F11"
Case 85: sInfo = sInfo & "F12"
Case Else: sInfo = sInfo & "???": Call sub538(Mid$(l0198, 28, 2))
End Select
List1.AddItem sInfo
End Sub
Sub CStrToBStr (p0066 As String, p0068 As String, p006A As Integer)
Dim l006C As String
Dim l006E As Integer
l006C = Mid$(p0066, 1, 1)
l006E = 1
p0068 = ""
Do Until Asc(l006C) = 0
If l006E > p006A Then Exit Do
p0068 = p0068 + l006C
l006E = l006E + 1
l006C = Mid$(p0066, l006E, 1)
Loop
End Sub
Sub sub538 (ByVal p021C As String)
Dim l021E As String
Dim l0220 As String
Dim l0222 As Integer
l0222 = 1
l021E = " 01: "
While l0222 <= Len(p021C$)
l0220 = Hex(Asc(Mid$(p021C$, l0222, 1)))
If Len(l0220) < 2 Then l0220 = "0" + l0220
l021E = l021E + l0220 + " "
l0222 = l0222 + 1
If (l0222 - 1) Mod 16 = 0 Then
List1.AddItem l021E
l021E = Str$(l0222) + ": "
Else If (l0222 - 1) Mod 8 = 0 Then l021E = l021E + "- "
End If
Wend
List1.AddItem l021E
End Sub