diff --git a/packages/devextreme/js/__internal/core/license/lcp_key_validation/lcp_key_validation.test.ts b/packages/devextreme/js/__internal/core/license/lcp_key_validation/lcp_key_validation.test.ts
index fe8eb8c867d2..bc6e4b0b4ca7 100644
--- a/packages/devextreme/js/__internal/core/license/lcp_key_validation/lcp_key_validation.test.ts
+++ b/packages/devextreme/js/__internal/core/license/lcp_key_validation/lcp_key_validation.test.ts
@@ -17,6 +17,8 @@ import { createProductInfo } from './product_info';
 const DOT_NET_TICKS_EPOCH_OFFSET = 621355968000000000n;
 const DOT_NET_TICKS_PER_MS = 10000n;
 const DEVEXTREME_HTML_JS_BIT = 1n << 54n;
+const DEVEXTREME_ASPNET_BIT = 1n << 17n;
+const DEVEXTREME_COMPLETE_BITS = DEVEXTREME_HTML_JS_BIT | DEVEXTREME_ASPNET_BIT;
 
 function msToDotNetTicks(ms: number): string {
   return (BigInt(ms) * DOT_NET_TICKS_PER_MS + DOT_NET_TICKS_EPOCH_OFFSET).toString();
@@ -83,4 +85,80 @@ describe('LCP key validation', () => {
 
     expect(token.kind).toBe(TokenKind.verified);
   });
+
+  it('does not accept AspNet-only product bit without compatibility mode', () => {
+    const { parseDevExpressProductKey, TokenKind } = loadParserWithBypassedSignatureCheck();
+    const payload = `meta;251,${DEVEXTREME_ASPNET_BIT};`;
+
+    const token = parseDevExpressProductKey(createLcpSource(payload));
+
+    expect(token.kind).toBe(TokenKind.corrupted);
+    if (token.kind === TokenKind.corrupted) {
+      expect(token.error).toBe('product-kind');
+    }
+  });
+
+  it('accepts AspNet-only product bit in compatibility mode', () => {
+    const { parseDevExpressProductKey, TokenKind } = loadParserWithBypassedSignatureCheck();
+    const payload = `meta;251,${DEVEXTREME_ASPNET_BIT};`;
+
+    const token = parseDevExpressProductKey(createLcpSource(payload), true);
+
+    expect(token.kind).toBe(TokenKind.verified);
+    if (token.kind === TokenKind.verified) {
+      expect(token.payload.maxVersionAllowed).toBe(251);
+    }
+  });
+
+  it.each([false, true])('accepts HtmlJs-only product bit (acceptAspNetEntitlement=%s)', (acceptAspNetEntitlement) => {
+    const { parseDevExpressProductKey, TokenKind } = loadParserWithBypassedSignatureCheck();
+    const payload = `meta;251,${DEVEXTREME_HTML_JS_BIT};`;
+
+    const token = parseDevExpressProductKey(createLcpSource(payload), acceptAspNetEntitlement);
+
+    expect(token.kind).toBe(TokenKind.verified);
+    if (token.kind === TokenKind.verified) {
+      expect(token.payload.maxVersionAllowed).toBe(251);
+    }
+  });
+
+  it.each([
+    { acceptAspNetEntitlement: false, expectedVersion: 251 },
+    { acceptAspNetEntitlement: true, expectedVersion: 252 },
+  ])('selects the correct entitlement for Complete followed by legacy AspNet (acceptAspNetEntitlement=$acceptAspNetEntitlement)', ({
+    acceptAspNetEntitlement,
+    expectedVersion,
+  }) => {
+    const { parseDevExpressProductKey, TokenKind } = loadParserWithBypassedSignatureCheck();
+    const payload = [
+      'meta',
+      `251,${DEVEXTREME_COMPLETE_BITS}`,
+      `252,${DEVEXTREME_ASPNET_BIT}`,
+      '',
+    ].join(';');
+
+    const token = parseDevExpressProductKey(createLcpSource(payload), acceptAspNetEntitlement);
+
+    expect(token.kind).toBe(TokenKind.verified);
+    if (token.kind === TokenKind.verified) {
+      expect(token.payload.maxVersionAllowed).toBe(expectedVersion);
+    }
+  });
+
+  it.each([false, true])('selects newer Complete after an older AspNet-only entitlement (acceptAspNetEntitlement=%s)', (acceptAspNetEntitlement) => {
+    const { parseDevExpressProductKey, TokenKind } = loadParserWithBypassedSignatureCheck();
+    const payload = [
+      'meta',
+      `251,${DEVEXTREME_ASPNET_BIT}`,
+      `252,${DEVEXTREME_COMPLETE_BITS}`,
+      '',
+    ].join(';');
+
+    const token = parseDevExpressProductKey(createLcpSource(payload), acceptAspNetEntitlement);
+
+    expect(token.kind).toBe(TokenKind.verified);
+    if (token.kind === TokenKind.verified) {
+      expect(token.payload.maxVersionAllowed).toBe(252);
+    }
+  });
 });
diff --git a/packages/devextreme/js/__internal/core/license/lcp_key_validation/lcp_key_validator.ts b/packages/devextreme/js/__internal/core/license/lcp_key_validation/lcp_key_validator.ts
index 126e6b38c740..dedc910d1f5c 100644
--- a/packages/devextreme/js/__internal/core/license/lcp_key_validation/lcp_key_validator.ts
+++ b/packages/devextreme/js/__internal/core/license/lcp_key_validation/lcp_key_validator.ts
@@ -65,7 +65,10 @@ function productsFromString(encodedString: string): ParsedProducts {
   }
 }
 
-export function parseDevExpressProductKey(productsLicenseSource: string): Token {
+export function parseDevExpressProductKey(
+  productsLicenseSource: string,
+  acceptAspNetEntitlement = false,
+): Token {
   if (!isProductOnlyLicense(productsLicenseSource)) {
     return GENERAL_ERROR;
   }
@@ -93,7 +96,10 @@ export function parseDevExpressProductKey(productsLicenseSource: string): Token
       return errorToken;
     }
 
-    const maxVersionAllowed = findLatestDevExtremeVersion({ products });
+    const maxVersionAllowed = findLatestDevExtremeVersion(
+      { products },
+      acceptAspNetEntitlement,
+    );
 
     if (!maxVersionAllowed) {
       return PRODUCT_KIND_ERROR;
diff --git a/packages/devextreme/js/__internal/core/license/lcp_key_validation/license_info.ts b/packages/devextreme/js/__internal/core/license/lcp_key_validation/license_info.ts
index a526a3c61983..5fdeaa037010 100644
--- a/packages/devextreme/js/__internal/core/license/lcp_key_validation/license_info.ts
+++ b/packages/devextreme/js/__internal/core/license/lcp_key_validation/license_info.ts
@@ -17,12 +17,18 @@ export function getMaxExpiration(info: LicenseInfo): number {
   return Math.max(...expirationDates);
 }
 
-export function findLatestDevExtremeVersion(info: LicenseInfo): number | undefined {
+export function findLatestDevExtremeVersion(
+  info: LicenseInfo,
+  acceptAspNetEntitlement = false,
+): number | undefined {
   if (!isLicenseValid(info)) {
     return undefined;
   }
 
+  const productKinds = acceptAspNetEntitlement
+    ? [ProductKind.DevExtremeHtmlJs, ProductKind.DevExtremeAspNet]
+    : [ProductKind.DevExtremeHtmlJs];
   const sorted = [...info.products].sort((a, b) => b.version - a.version);
 
-  return sorted.find((p) => isProduct(p, ProductKind.DevExtremeHtmlJs))?.version;
+  return sorted.find((p) => isProduct(p, ...productKinds))?.version;
 }
diff --git a/packages/devextreme/js/__internal/core/license/license_validation.test.ts b/packages/devextreme/js/__internal/core/license/license_validation.test.ts
index 310c260a311f..80c6f27d1c33 100644
--- a/packages/devextreme/js/__internal/core/license/license_validation.test.ts
+++ b/packages/devextreme/js/__internal/core/license/license_validation.test.ts
@@ -3,6 +3,7 @@ import {
 } from '@jest/globals';
 import config from '@js/core/config';
 import errors from '@js/core/errors';
+import { fullVersion } from '@js/core/version';
 
 import { base } from '../../ui/overlay/z_index';
 import {
@@ -11,12 +12,14 @@ import {
   clearAssertedVersions,
 } from '../../utils/version';
 import { LICENSE_KEY_PLACEHOLDER } from './const';
+import * as productKeyValidator from './lcp_key_validation/lcp_key_validator';
 import {
   parseLicenseKey,
   setLicenseCheckSkipCondition,
   validateLicense,
 } from './license_validation';
 import * as trialPanel from './trial_panel.client';
+import { TokenKind } from './types';
 
 jest.mock('./key', () => ({
   PUBLIC_KEY: {
@@ -583,3 +586,120 @@ describe('assertedVersions integration', () => {
     });
   });
 });
+
+describe('AspNet entitlement gate', () => {
+  const LCP_LICENSE = 'LCPv1mock-license';
+
+  beforeEach(() => {
+    jest.spyOn(errors, 'log').mockImplementation(() => {});
+    jest.spyOn(console, 'warn').mockImplementation(() => {});
+    jest.spyOn(trialPanel, 'renderTrialPanel');
+    setLicenseCheckSkipCondition(false);
+  });
+
+  afterEach(() => {
+    jest.restoreAllMocks();
+    clearAssertedVersions();
+  });
+
+  it('accepts the AspNet entitlement when a DevExtreme.AspNet assertion exists', () => {
+    const parseSpy = jest.spyOn(productKeyValidator, 'parseDevExpressProductKey').mockReturnValue({
+      kind: TokenKind.verified,
+      payload: {
+        customerId: 'test',
+        maxVersionAllowed: 999,
+        format: 1,
+      },
+    });
+
+    assertDevExtremeVersion('DevExtreme.AspNet.Core', fullVersion);
+    validateLicense(LCP_LICENSE, fullVersion);
+
+    expect(parseSpy).toHaveBeenCalledWith(LCP_LICENSE, true);
+  });
+
+  it('does not accept the AspNet entitlement when there is no AspNet assertion', () => {
+    const parseSpy = jest.spyOn(productKeyValidator, 'parseDevExpressProductKey').mockReturnValue({
+      kind: TokenKind.verified,
+      payload: {
+        customerId: 'test',
+        maxVersionAllowed: 999,
+        format: 1,
+      },
+    });
+
+    assertDevExtremeVersion('DevExtreme.React', fullVersion);
+    validateLicense(LCP_LICENSE, fullVersion);
+
+    expect(parseSpy).toHaveBeenCalledWith(LCP_LICENSE, false);
+  });
+
+  it('does not accept the AspNet entitlement for an unrelated package with a matching prefix', () => {
+    const parseSpy = jest.spyOn(productKeyValidator, 'parseDevExpressProductKey').mockReturnValue({
+      kind: TokenKind.verified,
+      payload: {
+        customerId: 'test',
+        maxVersionAllowed: 999,
+        format: 1,
+      },
+    });
+
+    assertDevExtremeVersion('DevExtreme.AspNetFake', fullVersion);
+    validateLicense(LCP_LICENSE, fullVersion);
+
+    expect(parseSpy).toHaveBeenCalledWith(LCP_LICENSE, false);
+  });
+
+  it('keeps version mismatch warnings for other packages when accepting the AspNet entitlement', () => {
+    const parseSpy = jest.spyOn(productKeyValidator, 'parseDevExpressProductKey').mockReturnValue({
+      kind: TokenKind.verified,
+      payload: {
+        customerId: 'test',
+        maxVersionAllowed: 999,
+        format: 1,
+      },
+    });
+
+    assertDevExtremeVersion('DevExpress.SomeOtherProduct', '1.2.3');
+    assertDevExtremeVersion('DevExtreme.AspNet.Core', fullVersion);
+    validateLicense(LCP_LICENSE, fullVersion);
+
+    expect(errors.log).toHaveBeenCalledWith(
+      'W0023',
+      expect.stringContaining('DevExpress.SomeOtherProduct'),
+    );
+    expect(parseSpy).toHaveBeenCalledWith(LCP_LICENSE, true);
+  });
+
+  it('does not revalidate an early JavaScript component after a later AspNet assertion', () => {
+    const parseSpy = jest.spyOn(productKeyValidator, 'parseDevExpressProductKey').mockReturnValue({
+      kind: TokenKind.corrupted,
+      error: 'product-kind',
+    });
+
+    validateLicense(LCP_LICENSE, fullVersion);
+    assertDevExtremeVersion('DevExtreme.AspNet.Core', fullVersion);
+    validateLicense(LCP_LICENSE, fullVersion);
+
+    expect(parseSpy).toHaveBeenCalledTimes(1);
+    expect(parseSpy).toHaveBeenCalledWith(LCP_LICENSE, false);
+  });
+
+  it('does not revalidate an early JavaScript component whose license is valid without the AspNet entitlement', () => {
+    const parseSpy = jest.spyOn(productKeyValidator, 'parseDevExpressProductKey').mockReturnValue({
+      kind: TokenKind.verified,
+      payload: {
+        customerId: 'test',
+        maxVersionAllowed: 999,
+        format: 1,
+      },
+    });
+
+    validateLicense(LCP_LICENSE, fullVersion);
+    assertDevExtremeVersion('DevExtreme.AspNet.Core', fullVersion);
+    validateLicense(LCP_LICENSE, fullVersion);
+
+    expect(parseSpy).toHaveBeenCalledTimes(1);
+    expect(parseSpy).toHaveBeenCalledWith(LCP_LICENSE, false);
+  });
+});
diff --git a/packages/devextreme/js/__internal/core/license/license_validation.ts b/packages/devextreme/js/__internal/core/license/license_validation.ts
index 48d75c73d4a4..b5db5f633ecf 100644
--- a/packages/devextreme/js/__internal/core/license/license_validation.ts
+++ b/packages/devextreme/js/__internal/core/license/license_validation.ts
@@ -5,6 +5,7 @@ import { fullVersion } from '@js/core/version';
 import type { Version } from '../../utils/version';
 import {
   assertedVersionsCompatible,
+  getAssertedVersions,
   parseVersion,
 } from '../../utils/version';
 import {
@@ -24,14 +25,23 @@ import {
 } from './types';
 
 let validationPerformed = false;
+const ASPNET_ASSERTION_PREFIX = 'devextreme.aspnet.';
 
-export function parseLicenseKey(encodedKey: string | undefined): Token {
+function hasAspNetVersionAssertion(): boolean {
+  return getAssertedVersions()
+    .some(({ packageName }) => packageName.toLowerCase().startsWith(ASPNET_ASSERTION_PREFIX));
+}
+
+export function parseLicenseKey(
+  encodedKey: string | undefined,
+  acceptAspNetEntitlement = false,
+): Token {
   if (encodedKey === undefined) {
     return GENERAL_ERROR;
   }
 
   if (isProductOnlyLicense(encodedKey)) {
-    return parseDevExpressProductKey(encodedKey);
+    return parseDevExpressProductKey(encodedKey, acceptAspNetEntitlement);
   }
 
   return GENERAL_ERROR;
@@ -77,7 +87,8 @@ function getLicenseCheckParams({
       return { preview, error: 'W0021', warningType: 'old-devextreme-key' };
     }
 
-    const license = parseLicenseKey(licenseKey);
+    const acceptAspNetEntitlement = hasAspNetVersionAssertion();
+    const license = parseLicenseKey(licenseKey, acceptAspNetEntitlement);
 
     if (license.kind === TokenKind.corrupted) {
       if (license.error === 'product-kind') {
diff --git a/packages/devextreme/js/__internal/core/license/license_validation_internal.ts b/packages/devextreme/js/__internal/core/license/license_validation_internal.ts
index df552c7a8878..34bca45e56e6 100644
--- a/packages/devextreme/js/__internal/core/license/license_validation_internal.ts
+++ b/packages/devextreme/js/__internal/core/license/license_validation_internal.ts
@@ -1,13 +1,18 @@
 /* eslint-disable @typescript-eslint/no-unused-vars */
 import type { Token } from './types';
 
-// @ts-expect-error - only for internal usage
-export function parseLicenseKey(encodedKey: string | undefined): Token {}
+export function parseLicenseKey(
+  encodedKey: string | undefined,
+  acceptAspNetEntitlement?: boolean,
+): Token {
+  return undefined as unknown as Token;
+}
 
 export function validateLicense(licenseKey: string, version?: string): void {}
 
-// @ts-expect-error - only for internal usage
-export function peekValidationPerformed(): boolean {}
+export function peekValidationPerformed(): boolean {
+  return false;
+}
 
 export function setLicenseCheckSkipCondition(): void {}