Product GUIDs for Revit 2012 and Forever More

Every year anew, people ask for the Revit product GUIDs used to identify the Revit installation and stored in the Windows registry under

• HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Uninstall

There are different keys for each of the three Revit flavours, and for both 32 and 64 bit operating systems.

The first time around, we discussed the Revit 2010 and previous versions’ installation path and product GUIDs, and then updated the list for Revit 2011 last year.

As I mentioned last time, the install path is less of an issue nowadays. There is no longer any need to determine the location of Revit.ini to install an add-in, because you have to use an add-in manifest to inform Revit how to load your add-in instead.

Even though I mostly do not follow this advice myself, it is actually recommended to install .NET add-ins for both AutoCAD and Revit in or under the same directory as acad.exe and revit.exe ↗, respectively: “It’s safest to place assemblies at a location beneath the calling executable.”

Another way to determine the Revit install location is to use the RevitAddInUtility. It provides an API for an installer to query the Revit installation location, i.e. the path of Revit.exe, and also to generate an add-in manifest file from the relevant properties you specify.

In Revit 2011, there was an issue with using the RevitAddInUtility for 64 bits. That is resolved in Revit 2012, and the same assembly DLL should work transparently on all flavours of Windows now.

Revit Product GUIDs up to Revit 2012

Still, the product GUID may be important for other uses. Here is the updated list including the GUIDs for the initial Revit 2012 versions:

2012

64 bit

RAC

7346B4A0-1200-0110-0409-705C0D862004

RME

7346B4A0-1200-0310-0409-705C0D862004

RST

7346B4A0-1200-0210-0409-705C0D862004

32 bit

RAC

7346B4A0-1200-0100-0409-705C0D862004

RME

7346B4A0-1200-0300-0409-705C0D862004

RST

7346B4A0-1200-0200-0409-705C0D862004

2011

64 bit

RAC

94D463D0-2B13-4181-9512-B27004B1151A

RME

C31F3560-0007-4955-9F65-75CB47F82DB5

RST

23853368-22DD-4817-904B-DB04ADE9B0C8

32 bit

RAC

4AF99FCA-1D0C-4D5A-9BFE-0D4376A52B23

RME

CCCB80C8-5CC5-4EB7-89D0-F18E405F18F9

RST

0EE1FCA9-7474-4143-8F22-E7AD998FACBF

2010

64 bit

RAC

2A8EEE2F-4A9E-43d8-AA07-EC8A316B2DEB

RME

A1BD042B-8A6F-4e37-92A3-78921BB45B05

RST

BC9C0A08-DEA4-4138-A7FB-8F68866DB0C1

32 bit

RAC

572FBF5D-3BAA-42ff-A468-A54C2C0A17C3

RME

5C8281B1-B927-495a-A0FF-AB4BDFAE505C

RST

939D29FC-B82D-42a7-BB1E-8E3F121505CC

2009

64 bit

RAC

D2466208-7348-4214-B01E-7BC8729E2BD3

RME

4A98F976-01B5-40e8-A496-AEFD85C3A446

RST

B354FCF5-CF64-4fa2-AA84-9D9B2A6FA649

32 bit

RAC

A3A37DA6-70C0-497C-BCB1-148E9EC1D32E

RME

E3781DCB-A650-4E66-9B74-67A1B17F052C

RST

C4B3B3C3-2EE9-48D3-9BF5-4443F7ECF759

2008

RAC

4A11206C-4377-49E8-911E-B11548658FF3

RME

60A2743E-C881-4880-94ED-96445E38616F

RST

8D0AE0BB-4FE5-491D-A284-3B363F02E639

9.0

Revit Building

D11DB6CB-0332-4735-B312-B919741D975E

3

RST

3F11CEE0-D30D-41ce-8522-922B5D8BB324

8.1

Revit Building

7EBC0489-5E47-498D-BE31-B094484612E9

2

RST

BE814F63-629D-4fd8-B628-1437AC10F9D4

ADN members may also refer to the technical solution TS87598 [How to detect where Revit has been installed?] ↗, which has been updated with this new information as well.

Perpetual Revit Product GUIDs

As you may have noted above, the Revit 2012 GUIDs exhibit a strong similarity with each other.

From Revit 2012 onwards, the Revit products codes are generated according to the following pattern:

    {7346B4At-uuvv-wwxy-zzzz-705C0D862004}

The alphabetical characters above stand for:

21. [11, 12, …]: Major release version [11,12]
22. [00, 01, …]: Release subversion
25. 0/1: Global/Language Pack

The last item, represented by ‘z’, identifies the language. It uses the hexadecimal LCID, which I assume stands for language code identifier or something like that, and is defined in the following table:

lang

.NET code

HEX LCID

DEC LCID

Language name

Codepage

chs

zh-CN

0804

2052

Chinese Simplified

936

cht

zh-TW

0404

1028

Chinese Traditional

950

csy

cs-CZ

0405

1029

Czech

1250

deu

de-DE

0407

1031

German

1252

enu

en-US

0409

1033

English

1252

esp

es-ES

040A

1034

Spanish

1252

fra

fr-FR

040C

1036

French

1252

hun

hu-HU

040E

1038

Hungarian

1250

ita

it-IT

0410

1040

Italian

1252

jpn

ja-JP

0411

1041

Japanese

932

kor

ko-KR

0412

1042

Korean

949

plk

pl-PL

0415

1045

Polish

1250

ptb

pt-BR

0416

1046

Brazilian Portuguese

1252

rus

ru-RU

0419

1049

Russian

1251

Applying this rule to Revit 2012 for the RAC flavour, 64 bit operating system, initial release and US English generates the following value:

    {7346B4A0-1200-0110-0409-705C0D862004}

I checked my 32 bit Windows registry values, and see the following entries beginning with “7346B4A”:

{7346B4A0-1200-0100-0409-705C0D862004}

Revit Architecture 2012

{7346B4A0-1200-0101-0409-705C0D862004}

Revit Architecture 2012 Language Pack - English

{7346B4A0-1200-0200-0409-705C0D862004}

Revit Structure 2012

{7346B4A0-1200-0201-0409-705C0D862004}

Revit Structure 2012 Language Pack - English

{7346B4A0-1200-0300-0409-705C0D862004}

Revit MEP 2012

{7346B4A0-1200-0301-0409-705C0D862004}

Revit MEP 2012 Language Pack - English

These Revit product keys and the corresponding 64 bit ones produced the data that I added to the GUID table above.