PuTTY semi-bug needs-removeable-media
summary: Starting a session fails with "There is no disk in the drive"
class: semi-bug: This might or might not be a bug, depending on your precise definition of what a bug is.
priority: high: This should be fixed in the next release.
present-in: 0.61 0.62 0.63 0.65 0.66
fixed-in: bf00bcd2a4fee0855567b62cff83a0006c7c3232 2016-08-30 (0.68)
We've had several reports of trouble where PuTTY will not start (a
session, it sounds like, rather than at all) unless there is a disc in
a drive with removeable media: "There is no disk in the drive. Please
insert a disk into drive D:" (In all reports that have specified, it
has been D: rather than another drive, but of course that's the most
common removeable drive letter.) There's no obvious reason for this,
such as a path set in the configuration or shortcut that refers to the
We've not run into this ourselves, or been able to reproduce it.
This is vaguely reminiscent of
pageant-dirhandle, but probably
not the same thing.
The earliest version this has been reported with is 0.61. It appears
that it was the addition of support for
Windows 7 jump lists. that triggered
this. (All reports that have specified an OS have been with Windows 7.)
A correspondent says
It appears to be hung / frozen at this function call.
The Windows documentation about ICustomDestinationList mentions calling the
SetAppID function beforehand, and I figured out that you need to call
SetCurrentProcessExplicitAppUserModelID before using SetAppID.
So, I added this to WinMain in window.c
And tried again. Voila! No error. I did not have to add a SetAppID before
The call stack when it hangs seems to indicate that it's trying to
invent an App ID from things like filenames.
This seems like a harmless and useful change to make, so we've done so
(using a different string for UserModelID).
- 76179E18B340E04CA376B95E510416FEAB8719@nasanexd01d.na.qualcomm.com (Jan 2012, 0.61 on Windows 7)
Error message "when trying to open a session"
"still happens on a profile that I've asked not to use the GSSAPI"
Workaround: "From the device manager, I disabled the cd drive and then putty ran fine. I re-enabled the cd drive and putty ran fine. So that must have cleared some setting or data somewhere in windows."
- firstname.lastname@example.org (Jan 2012)
Reboot made issue apparently go away
- 50EB2A5D03FF4848A90AC0217EE38965029B132F@corpatsmail4.corp.sensis.com (Feb 2013, 0.62/2013-02-25 on Windows 7
"How to cause issue:
Insert ANY cd into computer run it and eject CD
Load a Profile
Get No Disk Error
Rebooting or inserting ANY cd will fix the issue
We are experiencing this issue on all of our computers."
- 536278DB.email@example.com (May 2014, Windows 7 Ultimate)
"When I am starting putty"
Drive itself is removeable; no problem if it is absent
- 54DBE295.firstname.lastname@example.org (Feb 2015, 0.63 on Win 7 Professional)
"if I ever launch putty with a CD or DVD in the drive, putty then requires a CD or DVD to be present in the drive to make a connection until I reboot without a CD or DVD in." Have to reboot to clear the condition.
- email@example.com (Sep 2015, Windows 7)
- 253A8A19C1E94042A83B87F2A12D015E52A7DCF3@HDXDSP51.us.lmco.com (Aug
2016, with patch). Steps to repeat:
Start Putty / Load
Profile / Connect
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